Save My Exams! The Home of Revision. For more awesome GCSE and A level resources, visit us at Atomic Structure.
|
|
- Vernon Cameron
- 5 years ago
- Views:
Transcription
1 Atomic Structure Mark Scheme 2 Level IGCSE(9-) Subject Chemistry Exam Board Edexcel IGCSE Module Double Award (Paper C) Topic Principles of Chemistry Sub-Topic Atomic Structure Booklet Mark Scheme 2 Time Allowed: 57 minutes Score: /47 Percentage: /00 Grade Boundaries: >90% 80% 70% 60% 50% 40% 30% 2 20% 0%
2 Expected Answer Accept Reject (a) M both protons = 6 Ma rks (b) M2 C-3 has 7 and C-4 has 8 (neutrons) same electronic configuration(s) / structure(s) OR different of protons same of electrons OR amount for / six electrons have four/same of electrons in outer / valence shell IGNORE same of electrons in inner shells IGNORE references to atomic / same of protons / different of neutrons (c) (i) M the average / mean mass of an atom (of the element) average/mean of: atomic masses / mass s / mass of isotopes mean mass of an element M2 compared to / relative to (/2 th ) the mass (of an atom) of carbon-2 OR on a scale where carbon-2 has a mass of 2 / compared with the mass of carbon-2 which is 2 M mass of one mole of atoms M2 compared to (mass of) /2 th one mole / g of carbon-2 mass of one mole of the element
3 c (ii) M (2 x 98.9) + (3 x.) M2 00 Expected Answer Accept Reject (2 x 0.989) + (3 x 0.0) for first 2 marks Mar ks M3 2.0 IGNORE units 2.0 on its own for 2 marks 2.0 on its own for 3 marks
4 Answer Notes Marks 2 (a) electron(s) (b) electron(s) (c) (i) protons (and) electrons Accept in either order both answers (ii) protons neutrons (d) (i) 2 (ii) 24 (iii) Accept any other punctuation marks, such as, / ) and no punctuation marks Total 8 marks
5 Answer Notes Marks 3 (a) 3 (b) ammonia / NH 3 Do not accept ammonium hydrogen chloride / HCl Do not accept hydrochloric acid Accept in either order. If name and formula given, both must be correct. Ignore state symbols, except HCl (aq) (c) ammonium chloride / NH 4 Cl Do not accept ammonia chloride. If name and formula given, both must be correct. (d) cross in box 2 (decomposition) cross in box 4 (neutralisation) Total 6 marks
6 Answer Notes Marks 4 a b i A (an electron) ii B (a neutron) iii B (electrons and protons) c isotopes atomic s mass s 3 Total 7 marks
7 Mark Answer Accept Reject s 5 (a) releases thermal energy releases heat (energy) just releases energy (b) produces an increase in temperature (c) D (d) A M (consists of) positive AND negative/oppositely charged ions/mg 2+ AND O 2 (ions) IGNORE references to loss and gain of electrons 4 M2 (strong) attraction between (positive AND negative/ oppositely charged) ions/mg 2+ AND O 2 (ions) (strong) ionic bonding/(strong) ionic bonds M3 many ions (present in lattice)/giant structure/giant lattice M4 large amount of energy required (to separate the ions/overcome the attraction between the ions) If mention of covalent bonds/metallic bonds/intermolecular forces only M4 can be awarded 7 (e) M (name) magnesium chloride M2 (formula) MgCl 2 Penalise inappropriate use of upper or lower case letters or s in the wrong place break the ionic bonding/bonds accept a correct formula as a product in an equation whether the equation correct or not Total 9
8 Answer Notes Marks 6 a M nucleus M2 protons Accept in either order M3 neutrons M4 electrons M5 shells M6 protons AND electrons In either order M7 electrons b i 3 ii 5
Save My Exams! The Home of Revision. For more awesome GCSE and A level resources, visit us at Atomic Structure.
Atomic Structure Mark Scheme 3 Level IGCSE(9-) Subject Chemistry Exam Board Edexcel IGCSE Module Double Award (Paper C) Topic Principles of Chemistry Sub-Topic Atomic Structure Booklet Mark Scheme 3 Time
More informationFormulae, Equations & Amount of Substance
Formulae, Equations & Amount of Substance Scheme Level Subject Exam Board Topic Sub Topic Booklet International A Level Chemistry Edexcel The Core Principles of Chemistry Formulae, Equations & Amount of
More informationIsotopes, Mass Spec & RAM/ RMM
Isotopes, Mass Spec & RAM/ RMM Mark Scheme Level Subject Exam Board Topic Sub Topic Booklet International A Level Chemistry Edexcel The Core Principles of Chemistry Isotopes, Mass Spec & RAM/RMM Mark Scheme
More informationSave My Exams! The Home of Revision For more awesome GCSE and A level resources, visit us at Covalent bonding.
Covalent bonding Mark Scheme Level Subject Exam Board Topic Booklet Pre U Chemistry Cambridge International Examinations Covalent bonding-chemical forces Mark Scheme Time Allowed: 72 minutes Score: /60
More informationElectron Configuration & Structure
Electron Configuration & Structure Mark Scheme Level Subject Exam Board Topic Sub Topic Booklet International A Level Chemistry Edexcel The Core Principles of Chemistry Electron Configuration & Structure
More information3 rd Year Revision. (from second year: Conservation of Mass Acids, Alkalis and Indicators)
3 rd Year Revision (from second year: Conservation of Mass Acids, Alkalis and Indicators) To revise: Elements, compounds, mixtures. Periodic table names (eg groups, periods, transition metals, alkali metals,
More informationPeriodicity & Trends
Periodicity & Trends Mark Scheme 1 Level Subject Exam Board Topic International A Level Chemistry Edexcel The Core Principles of Chemistry Sub Topic Periodicity & Trends Booklet Mark Scheme 1 Time Allowed:
More informationThe Periodic Table. Mark Scheme1. Save My Exams! The Home of Revision For more awesome GCSE and A level resources, visit us at
The Periodic Table Mark Scheme 1 Level Subject Exam Board Topic Sub Topic Booklet Edexcel Chemistry GCSE(9-1) Key Concepts in Chemistry The Periodic Table Mark Scheme1 Time Allowed: 52 minutes Score: /43
More informationStructure Properties and Uses Mark Scheme 1
Structure Properties and Uses Mark Scheme Level IGCSE Subject Chemistry (4402) Exam Board AQA Unit C2 Topic Structure Properties and Uses Booklet Mark Scheme Time Allowed: 54 minutes Score: / 54 Percentage:
More informationIGCSE Chemistry 4437 / 5H Mark Scheme (Final) November 2007
IGCSE Chemistry 4437 / 5H Mark Scheme (Final) November 2007 IGCSE IGCSE Chemistry (4437/5H) Edexcel Limited. Registered in England and Wales No. 4496750 Registered Office: One90 High Holborn, London WC1V
More informationAnswer Additional guidance Mark
1(a) Answer An explanation that combines identification via a judgement (1 mark) to reach a conclusion via justification/reasoning (1 mark): a negative ion must have more electrons than protons in the
More informationSave My Exams! The Home of Revision For more awesome GCSE and A level resources, visit us at Atoms.
Atoms Mark Scheme Level Subject Exam Board Topic Booklet Pre U Chemistry Cambridge International Examinations Atoms-Physical Chemistry Mark Scheme Time Allowed: 47 minutes Score: /39 Percentage: /00 Grade
More informationChemical Bonds; Ionic; Covalent; Mettalic
Chemical Bonds; Ionic; Covalent; Mettalic Mark Scheme Level GCSE (9-) Subject Chemistry Exam Board AQA Topic 4.2 Bonding Structure + Props Matter Sub-Topic Chemical Bonds; Ionic; Covalent; Mettalic Difficulty
More informationAtoms, Amount, Equations & Reactions (Acid-Base Redox)
Atoms, Amount, Equations & Reactions (Acid-Base Redox) Mark Scheme 1 Level Subject Exam Board Topic Sub-Topic Booklet Mark Scheme 1 A Level Chemistry OCR Atoms, Amount, Equations & Reactions (Acid- Base
More informationQuestion Answer Marks Guidance 1 (a) (i) Al (ii) 2 ALLOW multiples
Question Answer Marks Guidance (a) (i) Al 3+ SO 2 4 2 (ii) Al 2 O 3 (s) + 3H 2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 O(l) Correct species AND correctly balanced state symbols on correct species 2 ALLOW
More information... [1] (ii) Draw a dot-and-cross diagram to show the bonding in NH 3
1 Chemists have developed models for bonding and structure which are used to explain different properties. (a) Ammonia, NH 3, is a covalent compound. Explain what is meant by a covalent bond. Draw a dot-and-cross
More informationPractice Test 1 Bio 103 Name
Practice Test 1 Bio 103 Name 1) An atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of approximately? a) 10 Daltons b) 19 Daltons c) 9 grams d) 9 Daltons e) 20 grams 2)
More informationSave My Exams! The Home of Revision For more awesome GCSE and A level resources, visit us at
Covalent Bonding Mark Scheme Level Subject Exam Board Topic Sub Topic Booklet Paper Type A Level Chemistry Edexcel Bonding & Structure Covalent Bonding Mark Scheme Open-Response Time Allowed: Score: Percentage:
More informationSave My Exams! The Home of Revision For more awesome GCSE and A level resources, visit us at Atomic Structure A* A B C D E U
Atomic Structure Mark Scheme 4 Level International A Level Subject Chemistry Exam Board CIE Topic Atomic Structure Sub-Topic Paper Type Theory Booklet Mark Scheme 4 Time Allowed: Score: 83 minutes /69
More information2 Answer all the questions. How many neutrons are there in an atom of chlorine-37?... [1] How many electrons are needed to fill one orbital?
2 Answer all the questions 1 The answer to each part of this question is a number (a) (i) How many neutrons are there in an atom of chlorine-37? [1] (ii) How many electrons are needed to fill one orbital?
More informationIGCSE Double Award Extended Coordinated Science
IGCSE Double Award Extended Coordinated Science Chemistry 3.5 & 3.6 - Covalent Bonds Covalent Bond You need to know what covalent bonding is. Like ionic bonds, covalent bonds are another type of chemical
More informationQuestion Answer Accept Reject Marks number 1 (a) covalent 1 ORA
Answer Accept Reject Marks (a) covalent (b) (i) M giant covalent / giant structure/lattice/network M2 strong (covalent) bonds/many (covalent) bonds macromolecular giant molecular Max if bonding stated
More informationThe electronic structure of the atoms of five elements are shown in the figure below.
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 used
More informationPage 2. (b) Mg 2+ (g) + 2e + 2Cl(g) (1) (M5)
M.(a) The enthalpy change / heat energy change / ΔH for the formation of one mole of (chloride) ions from (chlorine) atoms Allow enthalpy change for Cl + e Cl Do not allow energy change ionisation energy
More informationTOPIC: Chemical Bonds
TOPIC: Chemical Bonds H O bond H a water molecule In elements and compounds, the atoms are held together by chemical bonds. Forming a bond makes an atom more stable, so atoms form as many bonds are they
More informationChemical Bonds In elements and compounds, the atoms are held together by chemical bonds.
Chemical Bonds In elements and compounds, the atoms are held together by chemical bonds. Forming a bond makes an atom more stable, so atoms form as many bonds are they are able to. Bonds are made using
More informationChem 1075 Chapter 12 Chemical Bonding Lecture Outline. Chemical Bond Concept
Chem 1075 Chapter 12 Chemical Bonding Lecture Outline Slide 2 Chemical Bond Concept Recall that an atom has and electrons. Core electrons are found to the nucleus. Valence electrons are found in the s
More informationPart I. Multiple choice. Circle the correct answer for each problem. 3 points each
CHEM 100 Name Exam 1 Summer 2010 Part I. Multiple choice. Circle the correct answer for each problem. 3 points each 1. The observation that 20 g of hydrogen gas always combines with 160 g of oxygen gas
More informationElements and Isotopes. 2-1 The Nature of Matter
Elements and Isotopes An element's mass number (atomic mass) is the total number of protons and neutrons. Isotopes are atoms of the same element with a different number of neutrons. Most atomic masses
More informationWorksheet 2.1: Pre-check
Worksheet 2.1: Pre-check Complete these questions to check your understanding of some of the basic skills and ideas you will learn about. 1 Understanding matter and energy a If a single atom of an element
More informationWhat does the word BOND mean to you?
Chemical Bonds What does the word BOND mean to you? Chemical Bond attractive force between atoms or ions in a molecule or compound. Formed by: transferring e - (losing or gaining) sharing e - What do you
More informationCalculations involving Masses Mark Scheme 2
Calculations involving Masses Scheme 2 Level Edexcel Subject Chemistry Exam Board GCSE(9-1) Topic Key Concepts in Chemistry Sub Topic Calculations involving Masses Booklet Scheme 2 Time Allowed: 59 minutes
More informationCorrect Answer Reject Mark. Correct Answer Reject Mark [ (2 x 110.5) + (2 x 285.8)] (1)
(a)(i) Correct Answer Reject Mark CH CHCHCH CO H O HOOC(CH ) 4COOH Hʅ f +09.9 0.5 85.8 994.3 / kj mol Sʅ / 78.7 97.6 69.9 50.0 J mol K - 4 values correct () marks 3 / values correct mark 0 / values correct
More informationAtoms What subatomic particles make up the atom?
Atoms What subatomic particles make up the atom? What are the masses of the subatomic particles? What do atomic and mass number represent? What does 7 3 Li represent? How are elements arranged in the periodic
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
CHM 210 Chemistry Homework #3 Compounds and Their Bonds (Ch. 4) Due: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The octet rule indicates that
More informationBiotech 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 information1 a i C (neutrons and protons) 1. ii A (6) 1. iii D (11) 1. b 4 1. c i P AND T 1. ii S 1
a i C (neutrons and protons) ii A (6) iii D () b 4 c i P AND T ii S d (one) more electron than protons (one) fewer proton than electrons Accept more electrons than protons Accept fewer protons than electrons
More informationTopic 1a Atomic Structure Revision Notes
Topic 1a Atomic Structure 1) Fundamental particles Atoms consist of protons, neutrons and electrons Protons and neutrons are found in the nucleus which contains most of the mass of the atom and all of
More informationDo 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 information2-1 The Nature of Matter
2-1 The Nature of Matter Small Atoms Placed side by side, 100 million atoms would make a row only about 1 centimeter long. contain subatomic particles Atoms What three subatomic particles make up atoms?
More informationChapter 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(i) The atomic number of an atom is the number of... (1) (ii) The mass number of an atom is the number of (1)
This question is about atomic structure and elements. (a) Complete the sentences. (i) The atomic number of an atom is the number of... () The mass number of an atom is the number of... () (b) Explain why
More informationCS C1 H Calculating masses
Name: CS C1 H Calculating masses Date: Time: 27 minutes Total marks available: 27 Total marks achieved: Questions Q1. (a) Complete the sentence by putting a cross ( ) in the box next to your answer. The
More informationThe drawing shows a container of a compound called magnesium chloride. How many elements are joined together to form magnesium chloride?
Bonding part 5 Q1. The drawing shows a container of a compound called magnesium chloride. How many elements are joined together to form magnesium chloride? Magnesium chloride is an ionic compound. What
More informationChoose words from the list to complete the sentences below. In an atom, the particles with a negative charge are called...
Q1 This question is about the structure of atoms (a) Choose words from the list to complete the sentences below electrons ions neutrons protons In an atom, the particles with a negative charge are called
More informationCollision Theory. Mark Scheme 2. Save My Exams! The Home of Revision
Collision Theory Mark Scheme Level A Level Subject Chemistry Exam Board AQA Module 3. Physical Chemistry Topic 3..5 Kinetics Sub-Topic 3..5. Collision Theory Booklet Mark Scheme Time Allowed: 5 minutes
More informationChapter 2 The Chemical Context of Life
Chapter 2 The Chemical Context of Life Information in this chapter establishes a foundation for later discussion and elaboration of molecular-level events and processes in biological systems. Ensuring
More informationPaper Reference. Sample Assessment Material Time: 2 hours
Centre No. Candidate No. Paper Reference(s) 4CH0/1C Edexcel IGCSE Chemistry Chemistry Paper 1 Sample Assessment Material Time: 2 hours Materials required for examination Nil Items included with question
More informationPart I. Multiple choice. Circle the correct answer for each problem. 3 points each
CEM 100 Name Exam 1 Summer 2010 Part I. Multiple choice. Circle the correct answer for each problem. 3 points each 1. The observation that 20 g of hydrogen gas always combines with 160 g of oxygen gas
More informationGraspIT Questions Edexcel GCSE Key concepts in chemistry
A. Atomic structure: Model of the atom and structure of the atom 1. Describe JJ. Thomson s plum pudding model of the atom. (2) Cloud of positive charge [1] with tiny negatively charged electrons spread
More informationChemical Formulae, Equations, Calculations
Chemical Formulae, Equations, Calculations Mark Scheme Level IGCSE(9-) Subject Chemistry Exam Board Edexcel IGCSE Module Double Award (Paper C) Topic Principles of Chemistry Sub-Topic Chemical Formulae,
More informationEssential Organic Chemistry. Chapter 1
Essential Organic Chemistry Paula Yurkanis Bruice Chapter 1 Electronic Structure and Covalent Bonding Periodic Table of the Elements 1.1 The Structure of an Atom Atoms have an internal structure consisting
More informationProtons, neutrons & Electrons
3...2 Protons, neutrons & Electrons 56 minutes 54 marks Page of 8 M. (a) (i) p + n / number of nucleons (accept protons and neutrons) (Incorrect reference to electrons = contradiction) Mean /average mass
More informationQ1. As the world population increases there is a greater demand for fertilisers.
Q1. As the world population increases there is a greater demand for fertilisers. (a) Explain what fertilisers are used for............. (b) The amount of nitrogen in a fertiliser is important. How many
More information1 a C (green) 1. b value in range If range given, it must be wholly within d C (outer electrons) 1
a C (green) b value in range 20-250 If range given, it must be wholly within 20-250 c (colour) dark(er) grey / black Do not accept grey alone Reject any other colour given with black eg blue/black Ignore
More informationChoose words from the list to complete the sentences below. In an atom, the particles with a negative charge are called...
Q This question is about the structure of atoms (a) Choose words from the list to complete the sentences below electrons ions neutrons protons In an atom, the particles with a negative charge are called
More informationChem 110 Fall 2014 Exam I Whelan
Chem 110 Fall 2014 Exam I Whelan SID Last First Question 1 5 Points a) How many significant figures are there in each of the following numbers? 0.927790 0.060464 1.00x10 3 b) There are 12 eggs in a dozen.
More informationfor sodium ion (Na + )
3.4 Unit 2 Chemistry 2 Throughout this unit candidates will be expected to write word equations for reactions specified. Higher tier candidates will also be expected to write and balance symbol equations
More informationF321 Mark Scheme June 2012
1 (a) The (weighted) mean mass of an atom (of an element) The (weighted) average mass of an atom (of an element) 3 ALLOW average atomic mass DO NOT ALLOW mean mass of an element ALLOW mean mass of isotopes
More informationLondon Examinations IGCSE
Centre No. Candidate No. Paper Reference(s) 4437/5 London Examinations IGCSE Science (Double Award) Chemistry Paper 5 igher Tier Tuesday 6 November 2007 Morning Time: 1 hour 30 minutes Materials required
More informationIGCSE Double Award Extended Coordinated Science
IGCSE Double Award Extended Coordinated Science Chemistry 3.4 - Ions and Ionic Bonds Ions You need to know what ions are and how they can be formed. An ion is a charged atom, or a molecule - Caused by
More informationCampbell Biology, 11e (Urry) Chapter 2 The Chemical Context of Life. 2.1 Multiple-Choice Questions
Campbell Biology, 11e (Urry) Chapter 2 The Chemical Context of Life 2.1 Multiple-Choice Questions 1) About 25 of the 92 natural elements are known to be essential to life. Which 4 of these 25 elements
More informationOCR A GCSE Chemistry. Topic 2: Elements, compounds and mixtures. Bonding. Notes.
OCR A GCSE Chemistry Topic 2: Elements, compounds and mixtures Bonding Notes C2.2a describe metals and nonmetals and explain the differences between them on the basis of their characteristic physical and
More informationSL Score. HL Score ! /30 ! /48. Practice Exam: Paper 1 Topic 4: Bonding. Name
Name Practice Exam: Paper 1 Topic 4: Bonding SL SL Score! /30 HL Score! /48 1. What is the correct Lewis structure for hypochlorous acid, a compound containing chlorine, hydrogen and oxygen? A. B. C. D.
More informationTHE CHEMISTRY OF LIFE. The Nature of Matter
THE CHEMISTRY OF LIFE The Nature of Matter What do all of These Pictures Have in Common? And last, but not least GEICO S Gecko! MATTER All matter is made up of different combinations of elements.
More informationThe Chemical Basis of Life
The Chemical Basis of Life Chapter 2 Objectives Identify the four elements that make up 96% of living matter. Distinguish between the following pairs of terms: neutron and proton, atomic number and mass
More informationSt Robert of Newminster Catholic School and Sixth Form College
St Robert of Newminster Catholic School and Sixth Form College Year 12 Pre-Course Tasks: CHEMISTRY Exercise Mark Grade Atomic structure Chemical bonding Chemical equations Maths for chemists Moles Name:
More informationGeneral Chemistry. Lecture 3
General Chemistry Lecture 3 Electrons Protons and neutrons are found in the nucleus Electrons surround the nucleus in energy levels or shell at certain distances around the nucleus The number of electrons
More informationTHE BRIDGING COURSE TO SIXTH FORM CHEMISTRY AT Myton School
THE BRIDGING COURSE TO SIXTH FORM CHEMISTRY AT Myton School Introduction Before you start the AS Chemistry course in September you should have completed this new bridging course for Chemists. It has been
More informationSBI4U BIOCHEMISTRY. Atoms, Bonding & Molecular Polarity
SBI4U BIOCHEMISTRY Atoms, Bonding & Molecular Polarity 6 types of atoms make up 99% of all living organisms Naturally Occurring Elements in the Human Body Element Symbol Atomic # % of human body weight
More informationChapter 8 notes. 8.1 Matter. 8.1 objectives. Earth Chemistry
Chapter 8 notes Earth Chemistry 8.1 Matter 8.1 objectives Compare chemical properties and physical properties of matter. Describe the basic structure of an atom. Compare atomic number, mass number, and
More information(b) (i) Hydrogen bond(ing) / H bonding / H bonds Not just hydrogen 1
M.(a) 94 05.5 (b) (i) Hydrogen bond(ing) / H bonding / H bonds Not just hydrogen OR mark for all lone pairs mark for partial charges on the O and the H that are involved in H bonding mark for the H-bond,
More informationQuestion Answer Marks Guidance 1 (a) The (weighted) mean mass of an atom (of an element) OR The (weighted) average mass of an atom (of an element)
Question Answer Marks Guidance 1 (a) The (weighted) mean mass of an atom (of an element) The (weighted) average mass of an atom (of an element) 3 ALLOW average atomic mass DO NOT ALLOW mean mass of an
More informationShort answers worksheet grade 8 Short Answer
Short answers worksheet grade 8 Short Answer 1. How was Bohr s theory of atomic structure similar to the current theory? 2. How was Bohr s theory of atomic structure different form the current theory?
More informationName: Class key. Period: Chapter 6 Basic Chemistry assignments. The Living Environment 14-15
Name: Class key Period: Chapter 6 Basic Chemistry assignments Pages/Sections Date Assigned Date Due Topic: Atoms and Elements Objective: Compare and/or contrast atoms and elements. Atoms o atoms are the
More informationJuly 3, 2001 Chemistry 117 Name Summer 2002 Exam 1 NAID
July 3, 2001 Chemistry 117 Name Summer 2002 Exam 1 NAID Part I: Answer each question as completely as possible. Points are awarded on completeness. Turn this exam (parts I & II) with your opscan sheet
More informationHow do Elements Combine to Form Compounds?
How do Elements Combine to Form Compounds? ACTIVITY What is it made of? Compounds account for the huge variety of matter on Earth All the compounds that exist on Earth are built from elements 118 elements
More informationAtoms with a complete outer shell do not react with other atoms. The outer shell is called the valence shell. Its electrons are valence electrons.
Bonding and the Outer Shell Use this table for reference: http://www.dreamwv.com/primer/page/s_pertab.html Atoms with incomplete shells react with others in a way that allows it to complete the outer shell.
More informationfractional distillation (1) Answer Acceptable answers Mark
1(a)(i) fractional distillation 1(a)(ii) to make it liquid liquefy/condense to remove water (vapour) to remove carbon dioxide 1(b) 1(c)(i) D weak forces of attraction between the oxygen molecules An description
More informationTopic 4: Chemical Bonds. IB Chemistry SL Ms. Kiely Coral Gables Senior High
Topic 4: Chemical Bonds IB Chemistry SL Ms. Kiely Coral Gables Senior High 5th PERIOD Bell Ringer - review of 4.1 Quiz (revised) 1. What is the formula of a compound formed by magnesium and phosphate?
More information1 (a) gallium / Ga 1. (b) sodium / magnesium / aluminium / Na / Mg / Al 1. neon / argon / krypton / xenon / radon / Ne / Ar / Kr / Xe / Rn 5
(a) gallium / Ga (b) sodium / magnesium / aluminium / Na / Mg / Al (c) fluorine / F / F (d) nitrogen / N / N (e) neon / argon / krypton / xenon / radon / Ne / Ar / Kr / Xe / Rn Total 5 (a) (i) (ii) (iii)
More informationST EDWARD S OXFORD 16+ ENTRANCE EXAMINATION. For entry in September Chemistry. Use of a calculator is permitted.
ST EDWARD S OXFORD 16+ ENTRANCE EXAMINATION For entry in September 2017 Chemistry Use of a calculator is permitted Time: 1 hour Candidate s Name: Total marks available: 60 St Edward's School 16+ Entrance
More informationLower Sixth Chemistry. Sample Entrance Examination
Lower Sixth Chemistry Sample Entrance Examination Time allowed: 60 minutes Name: Total : 60 Marks INSTRUCTIONS : Answer all questions Answers should be written in the spaces provided Dictionaries or reference
More informationFigure 1. Describe what happens when two atoms of potassium react with one atom of sulfur. Give your answer in terms of electron transfer
Q1.Figure 1 shows the outer electrons in an atom of the Group 1 element potassium and in an atom of the Group 6 element sulfur. Figure 1 (a) Potassium forms an ionic compound with sulfur. Describe what
More information1.3 b) perform calculations, including. 1.4(i) reacting masses (from formulae. candidates answers should reflect the
SUBJECT: CHEMISTRY YEAR: 12 Study PLAN 2017 2018 1 st Term TEACHER: MS. MASOOMA MON TH DATE WEE K Sep 2 nd 1 LEARNING OBJECIIVES PRIOR LEARNING RESOURCES 1 st Term Commences U1: Moles and equation Determine
More information*AC112* *20AC11201* Chemistry. Assessment Unit AS 1 [AC112] FRIDAY 26 MAY, MORNING. assessing Basic Concepts in Physical and Inorganic Chemistry
Centre Number ADVANCED SUBSIDIARY (AS) General Certificate of Education 2017 Candidate Number Chemistry Assessment Unit AS 1 assessing Basic Concepts in Physical and Inorganic Chemistry [AC112] FRIDAY
More informationSubject: 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 informationAtomic Structure and The Periodic Table
Atomic Structure and The Periodic Table Mark Scheme Level A Level Subject Chemistry Exam Board Edexcel Topic Atomic Structure and The Periodic Table Sub Topic Booklet Mark Scheme Paper Type Open-Response
More informationSubject: Chemistry Foundation Code: Session: June Year: Final Mark Scheme
Subject: Code: 2811 Session: June Year: 2002 Final Mark Scheme 02/6/2002 MAXIMUM MARK 60 Page 1 of 7 3882 June 2002 Abbreviations, annotations and conventions used in the Mark Scheme / = alternative and
More information5.1 EXAM QUESTIONS MS
5.1 EXAM QUESTIONS MS 1. (a) 1s s p 6 3s 3p 6 1 (b) S (g) 1 (c) The negative S ion 1 repels the electron being added 1 (d) (i) Enthalpy of atomisation of sulphur 1 (ii) Second ionisation enthalpy of calcium
More informationNon-covalent bonding
on-covalent bonding Mark Scheme Level Subject Exam Board Topic Booklet Pre U Chemistry Cambridge International Examinations on-covalent bonding-chemical forces Mark Scheme Time Allowed: 44 minutes Score:
More informationQ1. The structures of four substances, A, B, C and D, are represented in Figure 1.
Q. The structures of four substances, A, B, C and D, are represented in Figure. (a) Use the correct letter, A, B, C or D, to answer each question. (i) Which substance is a gas? () Which substance is a
More information4. A hydrogen bond is formed between a hydrogen atom and a negative atom, usually a nitrogen or oxygen.
Name Biology Summer Assignment Print, complete and bring this assignment with you on the first day of classes. Use the background information document to help you complete this assignment. Modified True/False
More informationLife Science 1a Review Notes: Basic Topics in Chemistry
Life Science 1a Review Notes: Basic Topics in Chemistry Atomic Structure and the Periodic Table The history of the discovery of the atom will be left for you to read in the textbook. What are atoms? What
More informationTHE BRIDGING COURSE TO SIXTH FORM CHEMISTRY Birchwood High School
THE BRIDGING COURSE TO SIXTH FORM CHEMISTRY Birchwood High School Mrs Ryan Chemistry Please also access the website below which is a link to a really good PPT that will help to bridge the gap between GCSE
More informationGoals for Today. 0 Be able to draw Lewis Dot Diagrams for atoms, ions and ionic compounds. 0 Be able to write the names of ionic compounds
Goals for Today 0 Be able to draw Lewis Dot Diagrams for atoms, ions and ionic compounds 0 Be able to write the names of ionic compounds 0 Be able to write the formulas for ionic compounds 0 Today we are
More informationREVIEW element compound atom Neutrons Protons Electrons atomic nucleus daltons atomic number mass number Atomic mass
Domain 2: Matter REVIEW Matter is made up of elements An element is a substance that cannot be broken down to other substances by chemical reactions A compound is a substance consisting of two or more
More informationEdexcel GCE Chemistry 6241/01. June Results Mark Scheme. Chemistry 6241/01. Edexcel GCE
Edecel GCE Chemistry 6241/01 June 2006 Results Mark Scheme Edecel GCE Chemistry 6241/01 2 1 (a)..2s 2 2p 2 OR 1s 2 2s 2 2p 2 OR (1s 2 )2s 2 2p 1 2p y 1 ALLOW capitals and subscripts (b) large gap/jump
More informationCampbell's Biology, 9e (Reece et al.) Chapter 2 The Chemical Context of Life
Campbell's Biology, 9e (Reece et al.) Chapter 2 The Chemical Context of Life This chapter presents basic chemical principles for understanding the chemical context of living organisms, from atomic structure
More informationOCR Advanced Subsidiary GCE in Chemistry 2811 June 2001 Chemistry Foundation Subject: Foundation Chemistry Code: 2811 Session: June Year: 2001 Final Mark Scheme 10/6/2001 MAXIMUM MARK 90 RR 10/6/2001 Page
More information