(2) 1s 2... (1) Identify the block in the Periodic Table to which magnesium belongs.... (1)

Size: px
Start display at page:

Download "(2) 1s 2... (1) Identify the block in the Periodic Table to which magnesium belongs.... (1)"

Transcription

1 Q1. (a) State the meaning of the term first ionisation energy of an atom (b) Complete the electron arrangement for the Mg 2+ ion. 1s 2... Identify the block in the Periodic Table to which magnesium belongs.... (d) Write an equation to illustrate the process occurring when the second ionisation energy of magnesium is measured.... (e) The Ne atom and the Mg 2+ ion have the same number of electrons. Give two reasons why the first ionisation energy of neon is lower than the third ionisation energy of magnesium. Reason 1... Reason 2... (f) There is a general trend in the first ionisation energies of the Period 3 elements, Na Ar (i) State and explain this general trend. Trend... Explanation... Explain why the first ionisation energy of sulphur is lower than would be predicted from the general trend. (5) (Total 12 marks) Page 1 of 9

2 Q2. A sample of element Q was extracted from a meteorite. The table below shows the relative abundance of each isotope in a mass spectrum of this sample of Q. m/z Relative abundance (%) (a) (b) Define the term relative atomic mass of an element. Use the data above to calculate the relative atomic mass of this sample of Q. Give your answer to one decimal place. Suggest the identity of Q. In order to obtain a mass spectrum of Q, a gaseous sample is first ionised. Describe how ionisation is achieved in a mass spectrometer. Give three reasons why ionisation is necessary. (5) (Total 10 marks) Q3. A sample of iron from a meteorite was found to contain the isotopes 54 Fe, 56 Fe and 57 Fe. (a) The relative abundances of these isotopes can be determined using a mass spectrometer. In the mass spectrometer, the sample is first vaporised and then ionised. (i) State what is meant by the term isotopes. Explain how, in a mass spectrometer, ions are detected and how their abundance is measured. How ions are detected... How abundance is measured... (5) (b) (i) Define the term relative atomic mass of an element. Page 2 of 9

3 The relative abundances of the isotopes in this sample of iron were found to be as follows. m/z Relative abundance (%) Use the data above to calculate the relative atomic mass of iron in this sample. Give your answer to one decimal place. (4) (i) Give the electron arrangement of an Fe 2+ ion. State why iron is placed in the d block of the Periodic Table. (iii) State the difference, if any, in the chemical properties of isotopes of the same element. Explain your answer. Difference... Explanation... (4) (Total 13 marks) Q4. (a) Define the terms (i) mass number of an atom, relative molecular mass. Page 3 of 9

4 (b) (i) Complete the electron arrangement for a copper atom. 1s 2... Identify the block in the Periodic Table to which copper belongs. (iii) Deduce the number of neutrons in one atom of 65 Cu A sample of copper contains the two isotopes 63 Cu and 65 Cu only. It has a relative atomic mass, A r, less than 64. The mass spectrum of this sample shows major peaks with m/z values of 63 and 65, respectively. (i) Explain why the A r of this sample is less than 64. Explain how Cu atoms are converted into Cu + ions in a mass spectrometer. (iii) In addition to the major peaks at m/z = 63 and 65, much smaller peaks at m/z = 31.5 and 32.5 are also present in the mass spectrum. Identify the ion responsible for the peak at m/z = 31.5 in the mass spectrum. Explain why your chosen ion has this m/z value and suggest one reason why this peak is very small. Identity of the ion... Explanation for m/z value... Reason why this peak is very small... (6) (Total 12 marks) Q5. (a) Complete the following table. Relative mass Relative charge Proton Electron Page 4 of 9

5 (b) An atom of element Q contains the same number of neutrons as are found in an atom of 27 A1. An atom of Q also contains 14 protons. (i) Give the number of protons in an atom of 27 A1. Deduce the symbol, including mass number and atomic number, for this atom of element Q. Define the term relative atomic mass of an element (d) The table below gives the relative abundance of each isotope in a mass spectrum of a sample of magnesium. m/z Relative abundance (%) Use the data above to calculate the relative atomic mass of this sample of magnesium. Give your answer to one decimal place (e) State how the relative molecular mass of a covalent compound is obtained from its mass spectrum (Total 10 marks) Page 5 of 9

6 Q6. The values of the first ionisation energies of neon, sodium and magnesium are 2080, 494 and 736 kj mol 1, respectively. (a) Explain the meaning of the term first ionisation of an atom (b) Write an equation to illustrate the process occurring when the second ionisation energy of magnesium is measured Explain why the value of the first ionisation energy of magnesium is higher than that of sodium (d) Explain why the value of the first ionisation energy of neon is higher than that of sodium (Total 8 marks) Q7. Lithium hydride, LiH, is an ionic compound containing the hydride ion, H The reaction between LiH and aluminium chloride, AlCl 3, produces the ionic compound LiAlH 4 (a) Balance the equation below which represents the reaction between LiH and AlCl 3 LiH + AlCl 3 LiAlH 4 + LiCl (b) Give the electronic configuration of the hydride ion, H... Page 6 of 9

7 Predict the shape of the ion. Explain why it has this shape. Shape... Explanation (d) A bond in can be represented by H Al Name this type of bond and explain how it is formed. Type of bond... Explanation (Total 8 marks) Q8. (a) One isotope of sodium has a relative mass of 23. (i) Define, in terms of the fundamental particles present, the meaning of the term isotopes. Explain why isotopes of the same element have the same chemical properties. (iii) Calculate the mass, in grams, of a single atom of this isotope of sodium. (The Avogadro constant, L, is mol 1 ) (5) (b) Give the electronic configuration, showing all sub-levels, for a sodium atom.... Page 7 of 9

8 Explain why chromium is placed in the d block in the Periodic Table (d) An atom has half as many protons as an atom of 28 Si and also has six fewer neutrons than an atom of 28 Si. Give the symbol, including the mass number and the atomic number, of this atom.... (Total 9 marks) Page 8 of 9

9 Page 9 of 9

Electonic configuration

Electonic configuration 3.1.1.4 Electonic configuration 206 minutes 202 marks Page 1 of 25 Q1. (a) State the meaning of the term electronegativity. (b) State and explain the trend in electronegativity values across Period 3 from

More information

State the block in the Periodic Table that contains nickel Explain why nickel is ductile (can be stretched into wires)

State the block in the Periodic Table that contains nickel Explain why nickel is ductile (can be stretched into wires) Q1.(a) Nickel is a metal with a high melting point. (i) State the block in the Periodic Table that contains nickel. Explain, in terms of its structure and bonding, why nickel has a high melting point.

More information

Q1. Ionisation energies provide evidence for the arrangement of electrons in atoms. 1s 2... (1) (2)

Q1. Ionisation energies provide evidence for the arrangement of electrons in atoms. 1s 2... (1) (2) Q1. Ionisation energies provide evidence for the arrangement of electrons in atoms. (a) Complete the electron configuration of the Mg + ion. 1s 2... (b) (i) State the meaning of the term first ionisation

More information

Ionisation energies provide evidence for the arrangement of electrons in atoms. 1s 2... (1) (2)

Ionisation energies provide evidence for the arrangement of electrons in atoms. 1s 2... (1) (2) 1 State the relative charge and relative mass of a proton, of a neutron and of an electron. In terms of particles, explain the relationship between two isotopes of the same element. Explain why these isotopes

More information

Classification s,p,d blocks

Classification s,p,d blocks 3.1.4.1 Classification s,p,d blocks 78 minutes 77 marks Page 1 of 7 Q1. (a) Explain why certain elements in the Periodic Table are classified as p-block elements. Illustrate your answer with an example

More information

Q1. The electronic structure of the atoms of five elements are shown in the figure below.

Q1. The electronic structure of the atoms of five elements are shown in the figure below. Q1. The electronic structure of the atoms of five elements are shown in the figure below. The letters are not the symbols of the elements. Choose the element to answer the question. Each element can be

More information

Use these data to calculate the empirical formula of the unknown acid. Show your working.

Use these data to calculate the empirical formula of the unknown acid. Show your working. Q1.The manufacturer supplying concentrated ethanoic acid for the production of vinegar also supplied other acids. The label had come off a batch of one of these other acids. A sample of this unknown acid

More information

OCR AS LEVEL CHEMISTRY A ATOMS ELECTRON STRUCTURE PERIODICITY (a) (d) TEST

OCR AS LEVEL CHEMISTRY A ATOMS ELECTRON STRUCTURE PERIODICITY (a) (d) TEST OCR AS LEVEL CHEMISTRY A 1.1.1 ATOMS 1.2.1 ELECTRON STRUCTURE 1.3.1 PERIODICITY (a) (d) TEST Answer all questions Max 47 marks Name.. Mark../47...% Grade Paddington Academy 1 1. Carbon is in the p-block

More information

Q1. The electronic structure of the atoms of five elements are shown in the figure below.

Q1. The electronic structure of the atoms of five elements are shown in the figure below. Q. The electronic structure of the atoms of five elements are shown in the figure below. The letters are not the symbols of the elements. Choose the element to answer the question. Each element can be

More information

1.1 Atomic Structure Details of the three Sub-atomic (fundamental) Particles

1.1 Atomic Structure Details of the three Sub-atomic (fundamental) Particles 1.1 Atomic Structure Details of the three Sub-atomic (fundamental) Particles Particle Position Relative Mass Relative Charge Proton Nucleus 1 +1 Neutron Nucleus 1 0 Electron Orbitals 1/1840-1 An atom of

More information

Unit 1 Atomic Structure, Bonding and Periodicity

Unit 1 Atomic Structure, Bonding and Periodicity Surname Other Names Leave blank Centre Number Candidate Number Candidate Signature General Certificate of Education January 2002 Advanced Subsidiary Examination CHEMISTRY CHM1 Unit 1 Atomic Structure,

More information

Give the full electron configuration of an Al atom and of a Cr 3+ ion. Al atom... Cr 3+ ion... (2)

Give the full electron configuration of an Al atom and of a Cr 3+ ion. Al atom... Cr 3+ ion... (2) Q1. This question is about electron configuration. (a) Give the full electron configuration of an Al atom and of a Cr 3+ ion. Al atom. Cr 3+ ion (b) Deduce the formula of the ion that has a charge of 2+

More information

STRUCTURE AND BONDING

STRUCTURE AND BONDING NAME SCHOOL INDEX NUMBER DATE 1. 1989 Q 6 STRUCTURE AND BONDING The table below gives the distance between atoms (bond lengths) in halogen molecules and the energies required to break the bonds (bond energies)

More information

2. Atomic Structure and Periodic Table Details of the three Sub-atomic (fundamental) Particles

2. Atomic Structure and Periodic Table Details of the three Sub-atomic (fundamental) Particles 2. Atomic Structure and Periodic Table Details of the three Sub-atomic (fundamental) Particles Particle Position Relative Mass Relative Charge Proton Nucleus 1 +1 Neutron Nucleus 1 Electron Orbitals 1/184-1

More information

HL Chemistry Topic 12 Atomic Structure

HL Chemistry Topic 12 Atomic Structure Define: ionization energy - 1 - Trends in Ionization Energy in the Periodic Table Why do these trends in ionization energy occur? Background information: Understand the concept of effective nuclear charge

More information

1.1 Atomic Structure Details of the three Sub-atomic (fundamental) Particles

1.1 Atomic Structure Details of the three Sub-atomic (fundamental) Particles 1.1 Atomic Structure Details of the three Sub-atomic (fundamental) Particles Particle Position Relative Mass Relative Charge Proton Nucleus 1 +1 Neutron Nucleus 1 0 Electron Orbitals 1/1800-1 An atom of

More information

Activity # 2. Name. Date due. Assignment on Atomic Structure

Activity # 2. Name. Date due. Assignment on Atomic Structure Activity # 2 10 Name Date Date due Assignment on Atomic Structure NOTE: This assignment is based on material on the Power Point called Atomic Structure, as well as pages 167-173 in the Science Probe textbook.

More information

1 The atomic mass of titanium is atomic mass units. This atomic mass represents the

1 The atomic mass of titanium is atomic mass units. This atomic mass represents the Direct: Answer the following question(s). 1 The atomic mass of titanium is 47.88 atomic mass units. This atomic mass represents the A. total mass of all the protons and neutrons in an atom of Ti B. total

More information

Average Atomic Mass: How are the masses on the periodic table determined?

Average Atomic Mass: How are the masses on the periodic table determined? Chemistry Ms. Ye Name Date Block Average Atomic Mass: How are the masses on the periodic table determined? Most elements have more than one naturally occurring isotope. As you learned previously, the atoms

More information

atomic number mass number (2) Identify the particle which contains 11 protons, 12 neutrons and 10 electrons.... (1)

atomic number mass number (2) Identify the particle which contains 11 protons, 12 neutrons and 10 electrons.... (1) 1. (a) (i) Define the terms: atomic number...... mass number...... Identify the particle which contains 11 protons, 12 neutrons and 10 electrons.... (b) Bromine consists of two isotopes, mass numbers 79

More information

TOPIC 7. CHEMICAL CALCULATIONS I - atomic and formula weights.

TOPIC 7. CHEMICAL CALCULATIONS I - atomic and formula weights. TOPIC 7. CHEMICAL CALCULATIONS I - atomic and formula weights. Atomic structure revisited. In Topic 2, atoms were described as ranging from the simplest atom, H, containing a single proton and usually

More information

1.1 Atomic structure. The Structure of the Atom Mass Spectrometry Electronic Structure Ionisation Energies

1.1 Atomic structure. The Structure of the Atom Mass Spectrometry Electronic Structure Ionisation Energies 1.1 Atomic structure The Structure of the Atom Mass Spectrometry Electronic Structure Ionisation Energies a) Protons, neutrons and electrons THE STRUCTURE OF THE ATOM Atoms are made up of three fundamental

More information

Higher (National 6) Unit 1: Chemical changes and structure 1b Periodicity

Higher (National 6) Unit 1: Chemical changes and structure 1b Periodicity Higher (National 6) Unit 1: Chemical changes and structure 1b Periodicity 1. The graph below shows the melting points for the elements across a row in the Periodic Table. a) Identify the row represented

More information

Year 10 Science Chemistry Examination November 2011 Part A Multiple Choice

Year 10 Science Chemistry Examination November 2011 Part A Multiple Choice Year 10 Science Chemistry Examination November 2011 Part A Multiple Choice Answer these questions on the multiple choice answer sheet provided 2 Isotopes have been found as variations of atoms. Which of

More information

WP Unit 2 Practice: The Atom

WP Unit 2 Practice: The Atom WP Unit 2 Practice: The Atom Name 1. Name, and identify them clearly in your answer, one halogen, one noble gas, one alkali metal, one alkali earth metal, one metalloid, one transition metal and finally

More information

AS Paper 1 Atomic Structure MARK SCHEME

AS Paper 1 Atomic Structure MARK SCHEME AS Paper Atomic Structure MARK SCHEME M.(a) s s p 6 3s 3p 6 4s Allow correct numbers that are not superscripted (b) Ca(s)+ H O(l) Ca + (aq) + OH (aq) + H (g) State symbols essential (c) Oxidising agent

More information

TOPIC 7. CHEMICAL CALCULATIONS I - atomic and formula weights.

TOPIC 7. CHEMICAL CALCULATIONS I - atomic and formula weights. TOPIC 7. CHEMICAL CALCULATIONS I - atomic and formula weights. Atomic structure revisited. In Topic 2, atoms were described as ranging from the simplest atom, H, containing a single proton and usually

More information

The atomic number, Z, is the number of protons in the nucleus. The mass number,a, is the total number of protons and neutrons in the atom.

The atomic number, Z, is the number of protons in the nucleus. The mass number,a, is the total number of protons and neutrons in the atom. 3. Atomic Structure and Periodic Table Details of the three Sub-atomic (fundamental) Particles Particle Position Relative Mass Relative Charge Proton Nucleus 1 +1 Neutron Nucleus 1 There are various Electron

More information

State the number of protons and the number of neutrons in an atom of the isotope 85 Rb

State the number of protons and the number of neutrons in an atom of the isotope 85 Rb Q1.The element rubidium exists as the isotopes 85 Rb and 87 Rb (a) State the number of protons and the number of neutrons in an atom of the isotope 85 Rb Number of protons... Number of neutrons... (b)

More information

Science Class 9 th ATOMS AND MOLECULES. Symbols of Atoms of Different Elements. Atomic Mass. Molecules. Ions. Mole Concept. Finish Line & Beyond

Science Class 9 th ATOMS AND MOLECULES. Symbols of Atoms of Different Elements. Atomic Mass. Molecules. Ions. Mole Concept. Finish Line & Beyond Science Class 9 th ATOMS AND MOLECULES Symbols of Atoms of Different Elements Atomic Mass Molecules Ions Mole Concept Atom An atom is a particle of matter that uniquely defines a chemical element. An atom

More information

Mass number of isotope Number of neutrons Number of electrons. Element J K L M N P O Q Atomic

Mass number of isotope Number of neutrons Number of electrons. Element J K L M N P O Q Atomic NAME SCHOOL INDEX NUMBER DATE STRUCTURE OF THE ATOM, PERIODIC TABLES AND CHEMICAL FAMILIES 1. 1989 Q1a (i) An element X has atomic number 3, relative atomic mass 6.94 and consist of two isotopes of mass

More information

T2-1P1 [187 marks] [1 mark] How many protons, neutrons and electrons are present in each atom of 31 P? [1 mark]

T2-1P1 [187 marks] [1 mark] How many protons, neutrons and electrons are present in each atom of 31 P? [1 mark] T2-1P1 [187 marks] 1. How many protons, neutrons and electrons are present in each atom of 31 P? 2. What is the atomic number of a neutral atom which has 51 neutrons and 40 electrons? A. 40 B. 51 C. 91

More information

Shapes of molecules & ions

Shapes of molecules & ions .1..5 Shapes of molecules & ions 54 minutes 50 marks Page 1 of 6 Q1. (a) The shape of the molecule BCl and that of the unstable molecule CCl are shown below. (i) Why is each bond angle exactly 10 in BCl?

More information

Atomic Structure Atoms are very small ~ metres All atoms are made up of three sub-atomic particles: protons, neutrons and electrons

Atomic Structure Atoms are very small ~ metres All atoms are made up of three sub-atomic particles: protons, neutrons and electrons IB Chemistry (unit ) ATOMIC THEORY Atomic Structure - Recap Questions Define the following words: Atom Element Molecule Compound Atomic Structure Atoms are very small ~ - metres All atoms are made up of

More information

x H 2 O, and chlorine, Cl 2 (a) A student attempts to prepare hydrated aluminium sulfate by the following method.

x H 2 O, and chlorine, Cl 2 (a) A student attempts to prepare hydrated aluminium sulfate by the following method. 1 Hydrated aluminium sulfate, Al 2 (SO 4 ) 3 x H 2 O, and chlorine, Cl 2, are used in water treatment. (a) A student attempts to prepare hydrated aluminium sulfate by the following method. The student

More information

THE STRUCTURE OF ATOMS. ATOMS Atoms consist of a number of fundamental particles, the most important ones are...

THE STRUCTURE OF ATOMS. ATOMS Atoms consist of a number of fundamental particles, the most important ones are... Atomic Structure THE STRUCTURE OF ATOMS ATOMS Atoms consist of a number of fundamental particles, the most important ones are... Mass / kg Charge / C Relative mass Relative Charge PROTON NEUTRON ELECTRON

More information

Questions Booklet. UNIT 1: Principles & Applications of Science I CHEMISTRY SECTION. Level 3 Applied Science. Name:.. Teacher:..

Questions Booklet. UNIT 1: Principles & Applications of Science I CHEMISTRY SECTION. Level 3 Applied Science. Name:.. Teacher:.. Level 3 Applied Science UNIT 1: Principles & Applications of Science I CHEMISTRY SECTION Questions Booklet Name:.. Teacher:.. Level 3 Applied Science 2017-2018 Unit 1 (Chemistry) 1 1. State the relative

More information

Unit 2: Atomic Structure Additional Practice

Unit 2: Atomic Structure Additional Practice Name: Unit 2: Atomic Structure Additional Practice Period: 1. Which particles have approximately the same mass? an electron and an alpha particle an electron and a proton a neutron and an alpha particle

More information

The Mole Concept. It is easily converted to grams, no of particles or in the case of gas volume.

The Mole Concept. It is easily converted to grams, no of particles or in the case of gas volume. The Mole Concept The mole is a convenient unit A mole is the number of atoms present in exactly 12 g of the isotope carbon-12. In 12 g of carbon-12 there are 6.022 x 10 23 carbon atoms It is easily converted

More information

1. How many significant digits are there in each of the following measurements? (½ mark each) a) ha b) s. c) d) 0.

1. How many significant digits are there in each of the following measurements? (½ mark each) a) ha b) s. c) d) 0. SCH 4U_07-08 SCH3U: REVIEW NAME: (TOTAL SCORE = 80) 1. How many significant digits are there in each of the following measurements? (½ mark each) a) 204.45 ha b) 18.23 s c) 380 000 d) 0.00560 g 2. Name

More information

1. (a) Give the full electronic configuration of an atom of oxygen and give the reason why oxygen is classed as a p-block element

1. (a) Give the full electronic configuration of an atom of oxygen and give the reason why oxygen is classed as a p-block element 1. (a) Give the full electronic configuration of an atom of oxygen and give the reason why oxygen is classed as a p-block element. (c) (d) Write equations to show the changes occurring when the first and

More information

2. Which of the following salts form coloured solutions when dissolved in water? I. Atomic radius II. Melting point III.

2. Which of the following salts form coloured solutions when dissolved in water? I. Atomic radius II. Melting point III. 1. Which pair of elements reacts most readily? A. Li + Br 2 B. Li + Cl 2 C. K + Br 2 D. K + Cl 2 2. Which of the following salts form coloured solutions when dissolved in water? I. ScCl 3 II. FeCl 3 III.

More information

Edexcel Chemistry A-level

Edexcel Chemistry A-level Edexcel Chemistry A-level Topic 1 - Atomic Structure and Periodic Table Flashcards What was stated in Dalton s atomic theory? (4) What was stated in Dalton s atomic theory? Atoms are tiny particles made

More information

CP Chemistry Semester 1 Final Test Review 1. Know the symbol and the power of 10 for the following metric prefixes: A. Mega B.

CP Chemistry Semester 1 Final Test Review 1. Know the symbol and the power of 10 for the following metric prefixes: A. Mega B. Mass in grams 10 20 30 40 50 CP Chemistry Semester 1 Final Test Review 1. Know the symbol and the power of 10 for the following metric prefixes: A. Mega B. kilo D. deka E. deci G. milli H. micro C. hecto

More information

Chapter 1. I- Fill the following table. Element symbol and the mass no. n p n n n e. number. II - Choose the correct answer for the following: Ca-40

Chapter 1. I- Fill the following table. Element symbol and the mass no. n p n n n e. number. II - Choose the correct answer for the following: Ca-40 Chapter 1 I- Fill the following table. Element symbol and the mass no. Ca-40 Ca 2+ -40 O-17 O 2- -16 C-12 C-13 Atomic number n p n n n e II - Choose the correct answer for the following: 1. Consider the

More information

2 Examiner SECTION A. Answer all the questions in the spaces provided.

2 Examiner SECTION A. Answer all the questions in the spaces provided. 2 SECTION A Answer all the questions in the spaces provided. 1. An isotope of magnesium, 27 Mg, is used to detect leaks in water pipes. (a) It decays by β emission with a half life of 9 5 minutes. (i)

More information

QUESTIONSHEETS PERIODIC TABLE I MELTING POINTS AND BOILING POINTS IONISATION ENERGIES AND ELECTRON AFFINITIES ELECTRONEGATIVITIES AND BONDING

QUESTIONSHEETS PERIODIC TABLE I MELTING POINTS AND BOILING POINTS IONISATION ENERGIES AND ELECTRON AFFINITIES ELECTRONEGATIVITIES AND BONDING CHEMISTRY QUESTIONSHEETS AS Level AS TOPIC 9 PERIODIC TABLE I Questionsheet 1 Questionsheet 2 Questionsheet 3 Questionsheet 4 Questionsheet 5 Questionsheet 6 Questionsheet 7 Questionsheet 8 Questionsheet

More information

How many hydrogen atoms are there in the empirical formula of propene, C 3 H 6? How many neutrons are there in one atom of 24 Mg?

How many hydrogen atoms are there in the empirical formula of propene, C 3 H 6? How many neutrons are there in one atom of 24 Mg? 1 A 2 B 3 C The atomic number of Na is 11. How many electrons are there in a sodium ion, Na +? How many hydrogen atoms are there in the empirical formula of propene, C 3 H 6? What is the mass in grams

More information

Biotech 2: Atoms and Molecules OS Text Reading pp Electron cloud Atoms & Nucleus 2e Subatomic Particles Helium Electron cloud

Biotech 2: Atoms and Molecules OS Text Reading pp Electron cloud Atoms & Nucleus 2e Subatomic Particles Helium Electron cloud 9/4/017 Biotech : Atoms and Molecules OS Text Reading pp. 34-4 Atoms & Subatomic Particles Nucleus Helium e cloud cloud e Protons Neutrons Mass number = 4 s Nucleus Carbon atomic number = # of protons

More information

NSS Chemistry Part 2 The Microscopic World I HKCEE Past Paper Questions Structural Questions

NSS Chemistry Part 2 The Microscopic World I HKCEE Past Paper Questions Structural Questions NSS Chemistry Part 2 The Microscopic World I HKCEE Past Paper Questions Structural Questions 1. HKCEE 1994 Q7b The table below lists some physical properties of lead, bromine and lead(ii) bromide. Lead

More information

Chapter 2 Notes The Chemistry of Life

Chapter 2 Notes The Chemistry of Life Name: Chapter 2 Notes The Chemistry of Life Section 2-1 The Nature of Matter Date: Atoms (p. 35) The study of chemistry begins with the basic unit of matter, the. Comes from the Greek word atomos, meaning

More information

Do atoms always have an equal number of protons, neutrons and electrons? 1. Yes. 2. No.

Do atoms always have an equal number of protons, neutrons and electrons? 1. Yes. 2. No. Self Quiz Do atoms always have an equal number of protons, neutrons and electrons? 1. Yes. 2. No. Do atoms always have an equal number of protons, neutrons and electrons? 1. Yes. 2. No. A chemical bond

More information

Elements, isotopes and ionisa/on energies

Elements, isotopes and ionisa/on energies Elements, isotopes and ionisa/on energies Objec/ves Must State that 12 C is used as the standard measurement of rela/ve masses. Should Define terms rela/ng to isotopic and atomic mass, molecular mass and

More information

ATOMIC STRUCTURE. Content

ATOMIC STRUCTURE. Content 2 ATOMIC STRUCTURE 2 1 Content 2.1 The nucleus of the atom: neutrons and protons, isotopes, proton and nucleon numbers 2.2 Electrons: electronic energy levels, ionisation energies, atomic orbitals, etranuclear

More information

CHEM111 UNIT 1 MOLES, FORMULAE AND EQUATIONS QUESTIONS

CHEM111 UNIT 1 MOLES, FORMULAE AND EQUATIONS QUESTIONS Lesson 1 1. (a) Deduce the number of protons, neutrons and electrons in the following species: (i) 37 Cl - (ii) 1 H + (iii) 45 Sc 3+ (b) Write symbols for the following species: (i) 8 protons, 8 neutrons,

More information

Ionic and Covalent Bonds

Ionic and Covalent Bonds Chapter 6 Lecture Chapter 6 Ionic and Molecular Compounds 6.1 Ions: Transfer of Electrons Learning Goal Write the symbols for the simple ions of the representative elements. Fifth Edition Octet Rule An

More information

CHEM111 UNIT 1 MOLES, FORMULAE AND EQUATIONS QUESTIONS

CHEM111 UNIT 1 MOLES, FORMULAE AND EQUATIONS QUESTIONS Lesson 1 1. (a) Deduce the number of protons, neutrons and electrons in the following species: (i) 37 Cl - (ii) 1 H + (iii) 45 Sc 3+ (b) Write symbols for the following species: (i) 8 protons, 8 neutrons,

More information

Personalised Learning Checklists AQA Trilogy Chemistry Paper 1

Personalised Learning Checklists AQA Trilogy Chemistry Paper 1 AQA TRILOGY Chemistry (8464) from 2016 Topics T5.1 Atomic structure and the periodic table State that everything is made of atoms and recall what they are Describe what elements and compounds are State

More information

Unit 3. Atoms and molecules

Unit 3. Atoms and molecules Unit 3. Atoms and molecules Index. s and compounds...2.. Dalton's Atomic theory...2 2.-The atom...2 3.-Atomic number and mass number...2 4.-Isotopes, atomic mass unit and atomic mass...3 5.- configuration...3

More information

The atomic radius of metals increases down a Group.

The atomic radius of metals increases down a Group. 1 Which of these statements is incorrect? The atomic radius of metals increases down a Group. The trend in the melting temperature of successive elements across Period 2 is similar to that in Period 3.

More information

3. Atoms and Molecules. Mark (1) Mark (1) Mark (1) Mark (1) Mark (1) Mark (1) Marks (2)

3. Atoms and Molecules.  Mark (1) Mark (1) Mark (1) Mark (1) Mark (1) Mark (1) Marks (2) 3. Atoms and Molecules Q 1 144 grams of pure water is decomposed by passing electricity. 16 grams of hydrogen and 128 grams of oxygen are obtained. Which chemical law is illustrated by this statement?

More information

Quantitative chemistry Atomic structure Periodicity

Quantitative chemistry Atomic structure Periodicity IB chemistry Units 1-3 review Quantitative chemistry Significant figures The mole- be able to convert to number of particles and mass Finding empirical and molecular formulas from mass percentage States

More information

Atomic Structure Chapter 4 Mr. Hines

Atomic Structure Chapter 4 Mr. Hines Atomic Structure Chapter 4 Mr. Hines Part A Standard model of the atom Learning Targets and I can statements 1 List, label, and describe the parts of an atom. 2 Identify the atomic number and the atomic

More information

CBSE Class 9 Science Revision Notes CHAPTER 3 Atoms and Molecules

CBSE Class 9 Science Revision Notes CHAPTER 3 Atoms and Molecules CBSE Class 9 Science Revision Notes CHAPTER 3 Atoms and Molecules 1. Laws of Chemical Combination Limitation of Law of definite proportion This law does not hold good when the compound is obtained by using

More information

ESA Study Guide Year 10 Science

ESA Study Guide Year 10 Science Then and now Questions from pages 26, 27 of ESA Study Guide Year 10 Science 1. Which early scientist thought atoms would combine to form new substances? 2. Which New Zealand scientist found that most of

More information

REVIEW of Grade 11 Chemistry

REVIEW of Grade 11 Chemistry REVIEW of Grade 11 Chemistry SCH4U_08-09 NAME: Section A: Review of Rules for Significant Digits All measurements have a certain degree of associated with them. All the accurately known digits and the

More information

The Chemical Context of Life

The Chemical Context of Life Elements and Compounds The Chemical Context of Life Sodium Chlorine! Sodium chloride! An element is a substance that cannot be broken down to other substances by chemical reactions A compound is a substance

More information

Particle Relative Mass Charge

Particle Relative Mass Charge ADVANCED CHEMISTRY REVISION THE FIRST 5 WEEKS 1. Define each of the following words so that you can differentiate between them:- ELEMENT and COMPOUND, ATOM and MOLECULE An element is comprised of one type

More information

SCI-CH Chem Test II fall 2018 Exam not valid for Paper Pencil Test Sessions

SCI-CH Chem Test II fall 2018 Exam not valid for Paper Pencil Test Sessions SCI-CH Chem Test II fall 2018 Exam not valid for Paper Pencil Test Sessions [Exam ID:25FPCV 1 When a strontium atom loses its valence electrons, it has the same electron configuration as which element?

More information

Part A Unit-based exercise

Part A Unit-based exercise Topic 2 Microscopic World I / Microscopic World (Combined Science) Part A Unit-based exercise Unit 5 Atomic structure Fill in the blanks 1 atoms 2 solids; liquids; gases 3 metals; metalloids; non-metals

More information

CHEM 5, Spring 2016 EXAM 2 (Chp 3 & 4) Use the Scantron for Questions Mark only one answer unless instructed otherwise.

CHEM 5, Spring 2016 EXAM 2 (Chp 3 & 4) Use the Scantron for Questions Mark only one answer unless instructed otherwise. CHEM 5, Spring 2016 EXAM 2 (Chp 3 & 4) NAME 115 pt Use the Scantron for Questions 1-25. Mark only one answer unless instructed otherwise. CHP 3.1-3.4 (Atomic structure and isotopes) ANSWERS FOR QUESTIONS

More information

(2) (1) (2) The isotopic composition of a sample of sulphur is found using a mass spectrometer.

(2) (1) (2) The isotopic composition of a sample of sulphur is found using a mass spectrometer. 1. (a) State the meaning of the terms relative atomic mass......... mass number...... (iii) isotopes......... The isotopic composition of a sample of sulphur is found using a mass spectromer. Explain how

More information

(a) Fill in the last two boxes in the table below to show the order in which the next two sub-shells are filled.

(a) Fill in the last two boxes in the table below to show the order in which the next two sub-shells are filled. 1 In atoms, electrons fill up the sub-shells in order of increasing energy. (a) Fill in the last two boxes in the table below to show the order in which the next two sub-shells are filled. 1s 2s 2p s p

More information

Stoichiometry. Introduction. Rx between Hydrogen and Oxygen can be described as: Balanced equation: Or Avogadros Number: (number of Molecules)

Stoichiometry. Introduction. Rx between Hydrogen and Oxygen can be described as: Balanced equation: Or Avogadros Number: (number of Molecules) Stoichiometry Introduction Rx between Hydrogen and Oxygen can be described as: Balanced equation: Or Or Avogadros Number: (number of Molecules) Or Moles (amount of a substance containing avogadros number

More information

Atomic Structure Chapter 4 Mr. Hines

Atomic Structure Chapter 4 Mr. Hines Atomic Structure Chapter 4 Mr. Hines Part A Standard model of the atom Learning Targets and I can statements 1 List, label, and describe the parts of an atom. 2 Identify the atomic number and the atomic

More information

Mass Relationships of Atoms

Mass Relationships of Atoms Mass Relationships of Atoms The Mole - the fundamental SI measure of amount of substance - the amount of substance that contains as many elementary entities as there are atoms in exactly 12 g of carbon-12

More information

Subject: Chemistry Foundation Code: Session: January Year: Final Mark Scheme

Subject: Chemistry Foundation Code: Session: January Year: Final Mark Scheme Subject: Code: 2811 Session: January Year: 2001 Final Mark Scheme 14th Jan 2001 MAXIMUM MARK 90 Page 1 of 1 3882 January 2001 Answer all questions 1. Lithium was discovered in 1817 by the Swedish chemist

More information

REVIEW OF BASIC CHEMISTRY ANSWER KEY

REVIEW OF BASIC CHEMISTRY ANSWER KEY REVIEW OF BASIC CHEMISTRY ANSWER KEY 1. Name the following elements. Spelling counts: 2. Write the symbols for the following elements. H hydrogen sodium Na S sulphur phosphorus P Cl chlorine fluorine F

More information

Isotopes are different forms of the that have a. Isotopes of the same element have the but. Ions are atoms that have a. In an ion, the.

Isotopes are different forms of the that have a. Isotopes of the same element have the but. Ions are atoms that have a. In an ion, the. Chemistry Ms. Ye Name Date Block Atomic Structure: 1. What is important about the atomic number? 2. How do you figure out the number of a. Protons in an atom? b. Electrons in an atom? c. Neutrons in an

More information

ب 3 18 قسم الكيمياء مصطفي عيد

ب 3 18 قسم الكيمياء مصطفي عيد memxtd@yahoo.com m.moustapha@sau.edu.sa 0115888078 ب 3 18 قسم الكيمياء مصطفي عيد The Atom Nucleus Electron Shell or Orbit The Atom. What are the 3 major parts of an atom? Proton Neutron Electron Stoichiometry

More information

Day 2 & Day 3 Online Video Reviews: Video Lesson # 1: Ionic Formulas; Using Criss-Cross Method

Day 2 & Day 3 Online Video Reviews: Video Lesson # 1: Ionic Formulas; Using Criss-Cross Method Name: Period: Final Exam Fall 2017 Video Review +5 points will be added to the final exam score if the entire packet is complete. The packet is due the class period of the final exam NO EXCEPTIONS! The

More information

Chemistry Final Exam Review

Chemistry Final Exam Review Chemistry Final Exam Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. All of the following are physical properties of matter EXCEPT.

More information

CP Chemistry Semester 1 Final Test Review

CP Chemistry Semester 1 Final Test Review Mass in grams 10 20 30 40 50 CP Chemistry Semester 1 Final Test Review 1. Know the symbol and the power of 10 for the following metric prefixes: A. Mega M 10 6 D. deka da 10 1 G. milli m 10 6 B. kilo k

More information

An atom is the smallest particle of an element which still retains the properties of that element

An atom is the smallest particle of an element which still retains the properties of that element Chemistry: 4.The Atom (and introduction to the periodic table) Please remember to photocopy 4 pages onto one sheet by going A3 A4 and using back to back on the photocopier Syllabus OC39 Describe the structure

More information

Answers and Marking Scheme. Chemistry. Chemical Earth + Metals

Answers and Marking Scheme. Chemistry. Chemical Earth + Metals Answers and Marking Scheme Chemistry Chemical Earth + Metals Theory Test 2005 Part A 15 marks Attempt Questions 1 15 Allow about 20 minutes for this part Answer Box for Questions 1 15 1 A B C D 2 A B C

More information

PRACTICE EXAMINATION QUESTIONS FOR 1.2 AMOUNT OF SUBSTANCE

PRACTICE EXAMINATION QUESTIONS FOR 1.2 AMOUNT OF SUBSTANCE PRACTICE EXAMINATION QUESTIONS FOR 1.2 AMOUNT OF SUBSTANCE 1. Nitroglycerine, C 3 H 5 N 3 O 9, is an explosive which, on detonation, decomposes rapidly to form a large number of gaseous molecules. The

More information

Chapter 3. Atomic Number. Atomic Number. Section 3. Atoms of different elements have different numbers of protons.

Chapter 3. Atomic Number. Atomic Number. Section 3. Atoms of different elements have different numbers of protons. Section 3 Atomic Number Atoms of different elements have different numbers of protons. Atoms of the same element all have the same number of protons. The atomic number (Z) of an element is the number of

More information

Understanding Atomic Mass

Understanding Atomic Mass Understanding Atomic Mass What does a deck cards and the atomic mass on the periodic table have in common.? Let s Review Significant Figures and Digits All numbered digits are significant. i.e. 632 g =

More information

Exam Style Questions

Exam Style Questions Calderglen High School Chemistry Department CfE Higher Chemistry Unit 1: Chemical Changes and Structure Exam Style Questions 1 1.1 Controlling the Rate 1. The graph shows how the rate of a reaction varies

More information

OCR Advanced Subsidiary GCE in Chemistry 2811 January 2001 Chemistry Foundation Subject: Chemistry Foundation Code: 2811 Session: January Year: 2001 Final Mark Scheme 14th Jan 2001 MAXIMUM MARK 90 Page

More information

4. Draw a concept map showing the classifications of matter. Give an example of each.

4. Draw a concept map showing the classifications of matter. Give an example of each. Name Bring calculator, pencils, and this completed worksheet to the midterm exam. For problems involving an equation, carry out the following steps: 1. Write the equation. 2. Substitute numbers and units.

More information

number of protons number of electrons A B C 15 17

number of protons number of electrons A B C 15 17 1 The table gives the composition of three s. A 15 16 B 15 16 C 15 17 (a) What is the evidence in the table for each of the following? (i) Particle A is an atom. [1] (ii) A, B and C are all s of the same

More information

1. Atomic structure. 1. a) Name the sub-atomic particles found in the nucleus of an atom. [1 mark] Answer.

1. Atomic structure. 1. a) Name the sub-atomic particles found in the nucleus of an atom. [1 mark] Answer. 1 1. Atomic structure 1. a) Name the sub-atomic particles found in the nucleus of an atom. [1 mark] The sub-atomic particles found in the nucleus of an atom are protons, neutrons and electrons b) What

More information

Personalised Learning Checklists AQA Chemistry Paper 1

Personalised Learning Checklists AQA Chemistry Paper 1 AQA Chemistry (8462) from 2016 Topics C4.1 Atomic structure and the periodic table State that everything is made of atoms and recall what they are Describe what elements and compounds are State that elements

More information

Example: What is the number of electrons in an atom that has 3 protons and 4 neutrons? A. 3. B. 5. C. 7. D. 10.

Example: What is the number of electrons in an atom that has 3 protons and 4 neutrons? A. 3. B. 5. C. 7. D. 10. Structure of atom: PROTONS Protons are located in the nucleus of an atom. They carry a +1 electrical charge and have a mass of 1 atomic mass unit (u). NEUTRONS Neutrons are located in the nucleus of an

More information

Elements in the Periodic Table show a periodic trend in atomic radius. In your answer you should use appropriate technical terms, spelled correctly.

Elements in the Periodic Table show a periodic trend in atomic radius. In your answer you should use appropriate technical terms, spelled correctly. 1 The Periodic Table is arranged in periods and groups (a) Elements in the Periodic Table show a periodic trend in atomic radius State and explain the trend in atomic radius from Li to F In your answer

More information

No Brain Too Small CHEMISTRY AS91390 Demonstrate understanding of thermochemical principles and the properties of particles and substances

No Brain Too Small CHEMISTRY AS91390 Demonstrate understanding of thermochemical principles and the properties of particles and substances COLLATED QUESTIONS Electron configuration of atoms and ions of the first 36 elements (using s,p,d notation), periodic trends in atomic radius, ionisation energy, and electronegativity, and comparison of

More information

3. Determine the total charge of an oxygen nucleus: Valence electrons are ELECTRONS on the outer most electron shell (principle energy level).

3. Determine the total charge of an oxygen nucleus: Valence electrons are ELECTRONS on the outer most electron shell (principle energy level). Name: Period: Date: Hybrid Chemistry Regents Prep Ms. Hart/Mr. Kuhnau UNIT 2: Bonding Lesson 2.1: Ions and Ionic Bonding By the end of today, you will have an answer to: How do metals and non- metals bond

More information

Chemistry of period II elements

Chemistry of period II elements digitalteachers.co.ug Chemistry of period II elements Period 2 consists of the following elements as shown in table 7.1 below. Table 7.1 Period 2 elements Element: Li Be B C N O F Ne Electron Configuration

More information

Chemistry Senior Final Exam Review

Chemistry Senior Final Exam Review Name: Hour: Teacher: ROZEMA / CHEMISTRY Chemistry Senior Final Exam Review You will take your final exam on Tuesday May 29, 2018 (during 6 th Hour). Your final exam is a mixture of written and multiple

More information