Unit 2: Essentials of Chemistry Homework Packet (80 points)

Size: px
Start display at page:

Download "Unit 2: Essentials of Chemistry Homework Packet (80 points)"

Transcription

1 Name: KEY Period: By the end of Unit 2, you should be able to: Essentials of Chemistry Chapter 1-2 & 4-5 Unit 2: Essentials of Chemistry 8. Explain the nature of science including the use of the validity of the scientific method and the difference between a hypothesis, theory and law 9. Explain and give examples of physical properties and chemical properties 10. Explain the three major states of matter and their physical and chemical characteristics 11. Explain and give examples of physical changes and chemical changes 12. Identify the five pieces of evidence that a chemical reaction has occurred 13. Define and classify matter including pure substances mixtures. 14. Understand the historical progression of structure of the atom including such models created by Democritus, Dalton, Thomson, Rutherford, Bohr, and Schrodinger 15. Define and identify examples of the laws of conservation of mass, definite proportions, and multiple proportions 16. Identify the structure of an atom including the relative masses of a proton, neutron, and electron, their relative charges, and locations in the atom 17. Define and identify isotopes and ions 18. Define and distinguish between atomic number and mass number and identify the parts of the nuclear symbol 19. Define and calculate average atomic mass in amu s Nature of Science (pg. 6-25) 1. Describe three nature of science ideas. a. b. Theories cannot become laws. c. 2. Explain why the scientific method is useful. 3. Compare and contrast theories and laws. Laws are quantitative while theories are qualitative. goldchemistry.wordpress.com Page 1

2 Chemistry and Matter (pg. 2-3, 34-37, 43, 48-49) 4. Define chemistry. Chemistry is the study of matter. 5. Provide a sketch of the three main types of matter and label each type. 6. Define physical properties and provide at least two examples. Physical properties are properties that describe the material. Two examples include smashing rocks and ripping paper. 7. Define chemical properties and provide at least two examples. 8. Define a physical change. A change in which the chemical nature of the material is unchanged. 9. Provide two examples of physical change. 10. Define chemical change. A change in which the chemical nature of the material is altered. 11. Provide two examples of chemical change. goldchemistry.wordpress.com Page 2

3 12. List the five pieces of evidence of a chemical change. a. Formation of a gas b. c. Emission of light d. e. Color Change Classification of Matter (pg ) 13. Compare and contrast atoms and elements. 14. Identify the following as either an element or a compound: a. Carbon Element b. Cl 2 c. NaCl Compound d. Sugar 15. Define an allotrope and give an example. 16. Compare and contrast homogenous and heterogeneous mixtures. Homogenous is uniform while heterogeneous is not uniform. 17. Identify the following as either homogenous or heterogeneous a. Salt water b. Chocolate-chip cookies Heterogeneous: you can see the parts. c. Orange Juice with pulp goldchemistry.wordpress.com Page 3

4 Historical Background of the Atom (pg , ) 18. State Dalton s Atomic Theory. a. b. Atoms of similar properties are grouped as elements. c. d. Chemical reactions break bonds, rearrange atoms, and form new bonds. 19. Draw the plum pudding theory of the atom. 20. What did Rutherford find in his experiments and what was the significance of this discovery? He found that the atom was mostly empty space and that the mass of the atom was held in the nucleus. 21. Draw a Bohr model of a carbon atom. Be sure to label the electrons and protons with their charges. 22. State the law of conservation of mass. Reactant mass is equal to the product mass in a chemical reaction. 23. State the law of definite proportions. 24. State the law of multiple proportions. Atomic Structure (pg ) 25. Compare and contrast protons and electrons. goldchemistry.wordpress.com Page 4

5 26. What is the purpose of the neutron? Unit 2: Essentials of Chemistry Neutrons spread out the protons to ease the tension of having too much positive material in one place. 27. How many protons, neutrons, and electrons are in Oxygen-15? 28. How many protons, neutrons, and electrons are in Hydrogen-1? P: 1 E: 1 N: How many protons, neutrons, and electrons are in Hydrogen-2 (Deuterium)? 30. How many protons, neutrons, and electrons are in Hydrogen-3 (Tritium)? P: 1 E: 1 N: Provide the charge on an atom that a. Loses two electrons. b. Gains one electron. -1 c. Gains three electrons. d. Loses one electron Oxygen-16 has a -2 charge. How many protons, neutrons, and electrons are in this ion? 33. Gold-197 has a -1 charge. How many protons, neutrons, and electrons are in this ion? P: 79 E: 80 N: Calcium-40 has a +2 charge. How many protons, neutrons, and electrons are in this ion? goldchemistry.wordpress.com Page 5

6 Nuclear Symbols (pg ) Fill in the chart below. Unit 2: Essentials of Chemistry of Protons of Neutrons of Electrons Atomic Mass Nuclear Symbol Helium Nitrogen-15 Oxygen-16 (two more electrons than protons) Magnesium- 24 Magnesium Calcium-43 (two more protons than electrons) Average Atomic Mass: Show work on these calculations. (pg ) 35. Explain why we use atomic mass units (amu) instead of grams or kilograms. Easier to work with than really small numbers of grams. goldchemistry.wordpress.com Page 6

7 36. The following students have the following GPAs: a. 8 have a GPA of 3.8 b. 5 have a GPA of 3.4 c. 6 have a GPA of 3.0 d. 3 have a GPA of 2.8 e. 2 have a GPA of 2.6 What is the average GPA in the class? 37. Determine the average atomic mass for the following elements: a. The percent abundance of Carbon-12 is 98.89%. The atomic mass of Carbon-12 is amu s. The percent abundance of Carbon-13 is 1.11%. The atomic mass of Carbon-13 is amu s amu b. The percent abundance of Neon-20 is 90.48%. The atomic mass of Neon-20 is amu s. The percent abundance of Neon-21 is 0.27%. The atomic mass of Neon-21 is amu s. The percent abundance of Neon-22 is 9.25%. The atomic mass of Neon-22 is amu s. c. The percent abundance of Gallium-69 is %. The atomic mass of Gallium-69 is amu s. The percent abundance of Gallium-71 is %. The atomic mass of Gallium-71 is amu s amu goldchemistry.wordpress.com Page 7

The Structure of the Atom

The Structure of the Atom The Structure of the Atom Section 4.1 Early Ideas About Matter In your textbook, read about the philosophers, John Dalton, and defining the atom. For each statement below, write true or false. 1. Ancient

More information

Unit 2: Essentials of Chemistry. Chapter 1-2, 4-5

Unit 2: Essentials of Chemistry. Chapter 1-2, 4-5 Unit 2: Essentials of Chemistry Chapter 1-2, 4-5 Objectives 8 explain the nature of science including the use of the validity of the scientific method and the difference between a hypothesis, theory and

More information

Elements and Compounds. Composition of Matter

Elements and Compounds. Composition of Matter Elements and Compounds Composition of Matter Elements Element Identification Source of Light Elements Solar Spectra Detecting Elements Molecular Spectrum of CO Chemical and Physical Properties Elements

More information

Atomic Structure. How do you discover and study something you can t see?

Atomic Structure. How do you discover and study something you can t see? Atomic Structure How do you discover and study something you can t see? WHAT IS A THEORY? A hypothesis is a proposed explanation made as a starting point for further investigation (It s bright outside

More information

Matter and Energy. Chapter 3

Matter and Energy. Chapter 3 Matter and Energy Chapter 3 Matter Anything that has mass and takes up space Two categories Pure substances Mixtures Pure Substances Matter with a fixed composition Either an element or compound Element

More information

The Structure of the Atom

The Structure of the Atom The Structure of the Atom Section 4.1 Early Theories of Matter In your textbook, read about the philosophers, John Dalton, and defining the atom. For each statement below, write true or false. 1. Ancient

More information

Name Date. Matter: Pure Substances and Mixtures

Name Date. Matter: Pure Substances and Mixtures Name Date_ Matter: Pure Substances and Mixtures Part I: Directions: Classify each of the materials below. In the center column, state whether the material is a pure substance or a mixture. If the material

More information

Multiple Choice Do Now!

Multiple Choice Do Now! Name: Period: Date: KIPP NYC College Prep General Chemistry Quarter 1: Let s Review Multiple Choice Do Now! 1. Which substance can be decomposed by chemical means? (1) Aluminum (2) Octane (3) Silicon (4)

More information

Name Period Date Engage-Atoms 1. What does Bill cut in half?

Name Period Date Engage-Atoms   1. What does Bill cut in half? Name Period Date Engage-Atoms https://www.youtube.com/watch?v=fmuskig2exi 1. What does Bill cut in half? 2. By cutting this item in half he tries to prove that there are pieces that are uncut- table called

More information

I. History and Development of the Atom

I. History and Development of the Atom Unit 3: The Atom I. History and Development of the Atom A. Democritus (around 400 B.C.) Based on his observations of the natural world around him, Democritus was the first to suggest that all matter was

More information

Atoms and Matter. Democritus proposed that atoms are tiny, Indivisible particles that make up all matter. The word atom means unable to be divided.

Atoms and Matter. Democritus proposed that atoms are tiny, Indivisible particles that make up all matter. The word atom means unable to be divided. Atomic Structure 1 Atoms and Matter Democritus proposed that atoms are tiny, Indivisible particles that make up all matter The word atom means unable to be divided. Thomson s Atomic model(1898) (Plum-pudding

More information

Atoms and Matter. Democritus proposed that atoms are tiny, Indivisible particles that make up all matter. The word atom means unable to be divided.

Atoms and Matter. Democritus proposed that atoms are tiny, Indivisible particles that make up all matter. The word atom means unable to be divided. Atomic Structure 1 Atoms and Matter Democritus proposed that atoms are tiny, Indivisible particles that make up all matter The word atom means unable to be divided. Thomson s Atomic model(1898) (Plum-pudding

More information

Name Date Class ATOMIC STRUCTURE

Name Date Class ATOMIC STRUCTURE 4 ATOMIC STRUCTURE SECTION 4.1 DEFINING THE ATOM (pages 101 103) This section describes early atomic theories of matter and provides ways to understand the tiny size of individual atoms. Early Models of

More information

The History of the Atom. How did we learn about the atom?

The History of the Atom. How did we learn about the atom? The History of the Atom How did we learn about the atom? The Atomic Theory of Matter All matter is made up of fundamental particles. What does fundamental mean? The Greek Philosophers, 400 B.C. Democritus

More information

Early Atomic Models. Atoms: the smallest particle of an element that retains the properties of that element.

Early Atomic Models. Atoms: the smallest particle of an element that retains the properties of that element. Chapter 5 Early Atomic Models Atoms: the smallest particle of an element that retains the properties of that element. (Greek: atomos = indivisible) Democritus (Greek teacher in the 4 th century BC) First

More information

Atoms, Elements, and the Periodic Table Unit Assessment (2016) Page 1 of 13

Atoms, Elements, and the Periodic Table Unit Assessment (2016) Page 1 of 13 TEST NAME:Atoms, Elements, and the Periodic Table Unit Assessment (2016) TEST ID:36063 GRADE:06-08 SUBJECT:Life and Physical Sciences TEST CATEGORY: Common Assessment Atoms, Elements, and the Periodic

More information

Accelerated Chemistry Study Guide Atomic Structure, Chapter 3

Accelerated Chemistry Study Guide Atomic Structure, Chapter 3 Accelerated Chemistry Study Guide Atomic Structure, Chapter 3 Terms and definitions atom ion law of constant composition isotope atomic theory of matter mass number cathode ray tube atomic mass electron

More information

UNIT 2 - ATOMIC THEORY

UNIT 2 - ATOMIC THEORY UNIT 2 - ATOMIC THEORY VOCABULARY: Allotrope Electron Configuration Nuclear Charge Anion Element Nucleons Atom Excited state Nucleus Atomic Mass Ground state Orbital Atomic Mass unit (a.m.u.) Ion Proton

More information

Unit 3. The Atom & Modern Atomic Theory

Unit 3. The Atom & Modern Atomic Theory Unit 3 The Atom & Modern Atomic Theory Theories of the Atom Early Models & Thoughts: Democritus Matter is made up of tiny particles called atoms. Smallest unit that retains the identity of the element

More information

Notes:&&Unit&4:&Atomics& & & & & & & & & & & & & & & & &

Notes:&&Unit&4:&Atomics& & & & & & & & & & & & & & & & & Name: RegentsChemistry:Mr.Palermo Notes:Unit4:Atomics! www.mrpalermo.com Name: $ Key$Ideas$ Themodernmodeloftheatomhasevolvedoveralongperiodoftimethroughtheworkofmany scientists.(3.1a) Eachatomhasanucleus,withanoverallpositivecharge,surroundedbyoneormorenegatively

More information

Elements and Atoms NEVER TRUST AN ATOM THEY MAKE UP EVERYTHING

Elements and Atoms NEVER TRUST AN ATOM THEY MAKE UP EVERYTHING Elements and Atoms NEVER TRUST AN ATOM THEY MAKE UP EVERYTHING Atoms Matter! All matter is made up of tiny, fundamental particles called atoms Atoms are the smallest particles of an element that retain

More information

Which choice lists the states of matter in order from least compressible to most compressible?

Which choice lists the states of matter in order from least compressible to most compressible? DRAFT Do Not Use Until Posted. Course Name: - Question #: 1 Which choice lists the states of matter in order from least compressible to most compressible? A. solid liquid

More information

Chapter 4: Atomic Structure Section 4.1 Defining the Atom

Chapter 4: Atomic Structure Section 4.1 Defining the Atom Chapter 4: Atomic Structure Section 4.1 Defining the Atom Early Models of the Atom atom the smallest particle of an element that retains its identity in a chemical reaction Democritus s Atomic Philosophy

More information

Passing an electric current makes a beam appear to move from the negative to the positive end.

Passing an electric current makes a beam appear to move from the negative to the positive end. Chapter 4 Atoms and their structure History of the atom Not the history of atom, but the idea of the atom. Original idea Ancient Greece (400 B.C.) Democritus and Leucippus Greek philosophers. Smallest

More information

Teacher: Mr. gerraputa. Name: Base your answer to the question on the information below. Given the electron dot diagram:

Teacher: Mr. gerraputa. Name: Base your answer to the question on the information below. Given the electron dot diagram: Teacher: Mr. gerraputa Print Close Name: 1. Given the electron dot diagram: The valence electrons represented by the electron dot diagram could be those of atoms in Group 1. 13 3. 3 2. 15 4. 16 2. Which

More information

Dalton Thompson Rutherford Bohr Modern Model ("Wave. Models of the Atom

Dalton Thompson Rutherford Bohr Modern Model (Wave. Models of the Atom Dalton Thompson Rutherford Bohr Modern Model ("Wave Models of the Atom Mechanical" Model) Aim: To discuss the scientists and their contributions to the current atomic model. Focus: Rutherford's Gold Foil

More information

CH4 HOMEWORK : ATOMIC STRUCTURE

CH4 HOMEWORK : ATOMIC STRUCTURE Name Date Class 4 CH4 HOMEWORK : ATOMIC STRUCTURE SECTION 4.1 DEFINING THE ATOM (pages 101 103) This section describes early atomic theories of matter and provides ways to understand the tiny size of individual

More information

Units 1, 2 study guide- atomic structure

Units 1, 2 study guide- atomic structure Name: Units 1, 2 study guide- atomic structure 1) Complete the required information for each subatomic particle (T1.3) symbol name charge location Mass (AMU) p + e - n 0 2) Define the following terms:

More information

TEST REVIEW GCAA Chemistry Atoms. A. Excited B. Energy C. Orbital D. Plum Pudding Model

TEST REVIEW GCAA Chemistry Atoms. A. Excited B. Energy C. Orbital D. Plum Pudding Model TEST REVIEW GCAA Chemistry Atoms From the Hangman Game-----Match the answers correctly! A. Excited B. Energy C. Orbital D. Plum Pudding Model E. Bohr F. Electron G. Frequency H. Neutron I. Thomson J. alpha

More information

The structure of Atom III

The structure of Atom III The structure of Atom III Atomic Structure If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement

More information

Section Review. Development of the Atomic Theory USING VOCABULARY UNDERSTANDING CONCEPTS. Skills Worksheet

Section Review. Development of the Atomic Theory USING VOCABULARY UNDERSTANDING CONCEPTS. Skills Worksheet Skills Worksheet Section Review Development of the Atomic Theory USING VOCABULARY 1. In your own words, write a definition for the term atom. Correct each statement by replacing the underlined term. 2.

More information

2. Electrons: e - charge = negative -1 mass ~ 0

2. Electrons: e - charge = negative -1 mass ~ 0 Notes Ch. and 5: Atomic Structure and Nuclear Chemistry History and Structure the Nuclear Atom The Atom smallest particle an element that retains all properties the element I. Early Models the Atom A.

More information

8. (5 pts) Draw a sketch of an atom. Label the nucleus, protons, neutrons. nucleus, containing protons and neutrons

8. (5 pts) Draw a sketch of an atom. Label the nucleus, protons, neutrons. nucleus, containing protons and neutrons 1. (2 pts) Atoms of the same element, regardless of charge, all have the same number of protons. 2. (2 pts) Comparing the mass of an electron to the mass of a proton, one could say that the electron is

More information

a. According to Dalton, what is inside the atom? Nothing, the atom it the smallest

a. According to Dalton, what is inside the atom? Nothing, the atom it the smallest Unit 3: Review SCIENTIFIC THEORIES Dalton theorized that atoms were the smallest particle and could not be divided. Atoms can bond with one another in whole number ratios to form compounds but cannot be

More information

Chapter 2 Atoms and Elements. 2.4 The Atom

Chapter 2 Atoms and Elements. 2.4 The Atom Chapter 2 Atoms and Elements 2.4 The Atom Atoms Dalton s Atomic Theory Are tiny particles of matter. Of an element are similar and different from other elements. Of two or more different elements combine

More information

UNIT 2 - ATOMIC THEORY

UNIT 2 - ATOMIC THEORY UNIT 2 - ATOMIC THEORY VOCABULARY: Allotrope Anion Atom Atomic Mass Atomic Mass unit (a.m.u.) Atomic number Bohr model Cation Compound Electron Electron Configuration Element Excited state Ground state

More information

UNIT 2 - ATOMIC THEORY

UNIT 2 - ATOMIC THEORY *KEY* *KEY* UNIT 2 - ATOMIC THEORY *KEY* *KEY* VOCABULARY: Allotrope Anion Atom Atomic Mass Atomic Mass unit (a.m.u.) Atomic number Bohr model Cation Compound Electron Electron Configuration Element Excited

More information

CHEMISTRY 11 UNIT REVIEW: ATOMIC THEORY & PERIODIC TRENDS

CHEMISTRY 11 UNIT REVIEW: ATOMIC THEORY & PERIODIC TRENDS CHEMISTRY 11 UNIT REVIEW: ATOMIC THEORY & PERIODIC TRENDS Atoms Atoms have protons and neutrons located in the nucleus of the atom. Electrons orbit around the nucleus in well-defined paths. Protons have

More information

1. What is the difference between a qualitative and quantitative observation? Give at least one example of each.

1. What is the difference between a qualitative and quantitative observation? Give at least one example of each. 1 st 9wks Exam Review Name Per. Chemistry 1H Scientific Skills Unit - Lab Safety & Equipment: KEY EQUIPMENT TO KNOW: +beaker +Erlenmeyer flask +beaker tongs +balance +graduated cylinder +test tube +test

More information

3.1 Classification of Matter. Copyright 2009 by Pearson Education, Inc.

3.1 Classification of Matter. Copyright 2009 by Pearson Education, Inc. Chapter 3 Atoms and Elements 3.1 Classification of Matter Copyright 2009 by Pearson Education, Inc. 1 Matter Matter is the stuff that makes up all things. Copyright 2009 by Pearson Education, Inc. 2 Pure

More information

What is the current atomic model?

What is the current atomic model? 4.1 Atoms Basic Units of Matter What is the current atomic model? Matter is anything that has mass and takes up space, such as gases, solids, and liquids. Matter is not sound, heat, or light these are

More information

A1: Atomic Structure Worksheet (Goals 1 3, Chapter 4)

A1: Atomic Structure Worksheet (Goals 1 3, Chapter 4) Unit 3 Assignment Packet Name: Period: A1: Atomic Structure Worksheet (Goals 1 3, Chapter 4) 1. Democritus, who lived in Greece during the 4 th century B.C., suggested that is made up of tiny particles

More information

Chapter 11 Study Questions Name: Class:

Chapter 11 Study Questions Name: Class: Chapter 11 Study Questions Name: Class: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. The discovery of which particle proved that the atom

More information

What is a theory? An organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena

What is a theory? An organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena Atomic Structure What is a theory? An organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena Early Theories Democritus: 4 B.C.: atom He

More information

UNIT 2 - ATOMIC THEORY

UNIT 2 - ATOMIC THEORY UNIT 2 - ATOMIC THEORY VOCABULARY: Allotrope Electron Configuration Nuclear Charge Anion Element Nucleons Atom Excited state Nucleus Atomic Mass Ground state Orbital Atomic Mass unit (a.m.u.) Ion Proton

More information

Chemistry. Robert Taggart

Chemistry. Robert Taggart Chemistry Robert Taggart Table of Contents To the Student..................................................v Unit 1: Matter and Measurement Lesson 1: Chemistry and the Scientific Method...................3

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A 25 g sample of sugar is found to contain 51.4% oxygen by mass. Another 250 g sample

More information

protons electrons neutrons nucleus Center of the atom; contains protons and neutrons. The Atom Molecules are made up of two or more atoms.

protons electrons neutrons nucleus Center of the atom; contains protons and neutrons. The Atom Molecules are made up of two or more atoms. _ Period: The Atom Ch. 18:1 Everything is made of atoms. Atoms are the smallest part of matter. Atoms are made up of 3 subatomic particles (particles smaller than the atom): electrons, protons, and neutrons.

More information

CHAPTER 4 Atomic Structure

CHAPTER 4 Atomic Structure CHAPTER 4 Atomic Structure 4.1 Early Theories of Matter Earth, Water, Air, Fire Matter was thought to be infinitely divisible No method was available to test theories Democritus (460 B.C. 370 B.C.) First

More information

1 Development of the Atomic Theory

1 Development of the Atomic Theory CHAPTER 4 1 Development of the Atomic Theory SECTION Introduction to Atoms BEFORE YOU READ After you read this section, you should be able to answer these questions: What is the atomic theory? How has

More information

All are made of atoms. The, your and even are made of atoms. Atoms are. One atom is only one of a meter wide!

All are made of atoms. The, your and even are made of atoms. Atoms are. One atom is only one of a meter wide! Name: Atoms & The Periodic Table WHAT IS AN ATOM? What is an atom? All are made of atoms. The, your and even are made of atoms. Atoms are. One atom is only one of a meter wide! DEMOCRITIS The idea of an

More information

CHAPTER 3. Atoms: The Building Blocks of Matter

CHAPTER 3. Atoms: The Building Blocks of Matter CHAPTER 3 Atoms: The Building Blocks of Matter Origins of the Atom Democritus: Greek philosopher (460 BC - 370 BC) Coined the term atom from the Greek word atomos Democritus believes that atoms were indivisible

More information

Collegiate Institute for Math and Science Day 57: December 9, 2016 Room 427

Collegiate Institute for Math and Science Day 57: December 9, 2016 Room 427 Unit 2: Atomic Concepts Outline Name: Period: Date: 1. The modern model of the atom has evolved over a long period of time through the work of many scientists. Dalton s Model: Elements are made of atoms

More information

History of Atomic Theory

History of Atomic Theory Unit 2 The Atom History of Atomic Theory A. Democritus and Aristotle Democritus named the "atom" - means indivisible Dalton (with work of Lavoisier, Proust, and Gay-Lussac) 1. atomic theory - first based

More information

Nuclear Chemistry. Atomic Structure Notes Start on Slide 20 from the second class lecture

Nuclear Chemistry. Atomic Structure Notes Start on Slide 20 from the second class lecture Nuclear Chemistry Atomic Structure Notes Start on Slide 20 from the second class lecture The Birth of an Idea Democritus, 400 B.C. coined the term atom If you divide matter into smaller and smaller pieces,

More information

8.5 Atomic Structure

8.5 Atomic Structure Views of the Atom Democritus (Greek philosopher from 460 BC to 370 BC) Believed that atoms were indivisible and indestructible. His approach was simply philosophy and was not based upon the scientific

More information

tomic tructure Chapter 3

tomic tructure Chapter 3 tomic tructure Chapter 3 Early Theories of Matter 460 BC Democritus Proposed the matter was not infinitely divisible. Believed matter composed of particles called atoms. Early Theories of Matter Aristotle

More information

Chapter 4 Atomic Structure. Chemistry- Lookabaugh Moore High School

Chapter 4 Atomic Structure. Chemistry- Lookabaugh Moore High School Chapter 4 Atomic Structure Chemistry- Lookabaugh Moore High School Section 4.1 Defining the Atom Democritus (460 B.C 370 B.C.) first used the term atomon to describe the smallest particle of matter possible.

More information

History, Atomic Theory, and Atoms Review Packet HW: Due Wednesday, November 22 nd

History, Atomic Theory, and Atoms Review Packet HW: Due Wednesday, November 22 nd History, Atomic Theory, and Atoms Review Packet HW: Due Wednesday, November 22 nd Name Date Period Atomic Theory Fill in the missing information in the chart below: Name of Researcher Equipment/ Experiment

More information

Atomic Structure. ppst.com

Atomic Structure. ppst.com Atomic Structure ppst.com Defining the Atom The Greek philosopher (460 B.C. 370 B.C.) was among the first to suggest the existence of atoms (from the Greek word ) He believed that atoms were and His ideas

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

Early Models of the Atom

Early Models of the Atom Early Models of the Atom An atom is the smallest particle of an element that retains its identity in a chemical reaction. Although early philosophers and scientists could not observe individual atoms,

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

CHAPTER 4. Atomic Structure. 4.1 Atoms. Dalton s Atomic Theory

CHAPTER 4. Atomic Structure. 4.1 Atoms. Dalton s Atomic Theory CHAPTER 4 Atomic Structure 4.1 Atoms Democritus first suggested the idea of atoms Indivisible & Indestructible 460 B.C. 370 B.C. Dalton s Atomic Theory 1. All elements are composed of submicroscopic indivisible

More information

IB Chemistry : Atomic Structure & History with Boardworks Enabled Interactives

IB Chemistry : Atomic Structure & History with Boardworks Enabled Interactives Atomic Structure Contents INTRODUCING ATOMS SUB ATOMIC PARTICLES HISTORY ATOMIC # & MASS # AVERAGE ATOMIC MASS MASS SPECTROMETER ELECTRON CONFIGURATION ISOTOPES SUMMARY ACTIVITIES ELEMENTS DIFFERENT TYPES

More information

Atomic Nature of Matter

Atomic Nature of Matter Objectives: Atomic Nature of Matter 1. Define the atom and parts of the atom 2. Define the properties of an atom; molecules, compounds; states of matter Atoms Atoms are the building blocks of matter. Matter

More information

Chemistry 11 Early models of the atom 1. Structure of the Atom

Chemistry 11 Early models of the atom 1. Structure of the Atom Chemistry 11 Early models of the atom 1 Structure of the Atom Democritus Developed the idea of atom Thought things were made of atoms that have different Shapes Aristotle Matter is made of different amounts

More information

Atoms, Elements and the Periodic Table. By: Mrs. Herman 2013

Atoms, Elements and the Periodic Table. By: Mrs. Herman 2013 Atoms, Elements and the Periodic Table By: Mrs. Herman 2013 Made of A t o m s Protons (positive charge) Neutrons (neutral charge) Electrons (negative charge) Each atom contains a specific number of protons

More information

Name... Class... Date... In this activity you will have an opportunity to explore the nuclear model of the atom by building your own.

Name... Class... Date... In this activity you will have an opportunity to explore the nuclear model of the atom by building your own. Model of an atom Specification references: C1.1.4 Relative electrical charges of subatomic particles C1.1.5 Size and mass of atoms WS 1.2 Aims In this activity you will have an opportunity to explore the

More information

10. What word is used to describe properties of a substance that depend on the quantity of substance? Give two examples of such properties.

10. What word is used to describe properties of a substance that depend on the quantity of substance? Give two examples of such properties. 1. In which state does matter have a definite shape and volume? 2. In which state of matter are forces between particles least dominant? 3. What kind of change does not alter the composition or identity

More information

Name Chemistry-PAP Per. Notes: Atomic Structure

Name Chemistry-PAP Per. Notes: Atomic Structure Name Chemistry-PAP Per. I. Historical Development of the Atomic Model Ancient Greek Model Notes: Atomic Structure Democritus (460-370 BC) was an ancient Greek philosopher credited with the first particle

More information

Chem 1075 Chapter 5 Models of the Atom Lecture Outline

Chem 1075 Chapter 5 Models of the Atom Lecture Outline Chem 1075 Chapter 5 Models of the Atom Lecture Outline Slide 2 Dalton Model of the Atom John Dalton proposed that is made up of The particles are or can be broken down into by chemical processes. cannot

More information

Regents Chemistry PRACTICE PACKET. Unit 2: Atomic Theory

Regents Chemistry PRACTICE PACKET. Unit 2: Atomic Theory *STUDENT* *STUDENT* Regents Chemistry PRACTICE PACKET Unit 2: Atomic Theory 2 Copyright 2015 Tim Dolgos Name History of Atomic Theory Period Fill in the missing information in the chart below: Name of

More information

Atomic Structure. Defining the Atom. Defining the Atom. Sizing up the Atom. Structure of the Atom 9/18/2012

Atomic Structure. Defining the Atom. Defining the Atom. Sizing up the Atom. Structure of the Atom 9/18/2012 Atomic Structure Defining the Atom Atom smallest particle of an that retains the chemical of that element 1 2 Defining the Atom The Greek philosopher Democritus (460 B.C. 370 B.C.) was among the to suggest

More information

Chapter 2 Atoms and Elements

Chapter 2 Atoms and Elements 1 Chapter 2 Atoms and Elements Sec 2.3 Modern Atomic Theory and the Laws That Led to it Law of conservation of mass states that in a chemical reaction, matter is neither created nor destroyed. Law of definite

More information

Name Class Date. The statements below are false. For each statement, replace the underlined term to make a true statement.

Name Class Date. The statements below are false. For each statement, replace the underlined term to make a true statement. Skills Worksheet Chapter Review USING KEY TERMS The statements below are false. For each statement, replace the underlined term to make a true statement. 1. Electrons have a positive charge. 2. All atoms

More information

UNIT 4 ATOMIC THEORY

UNIT 4 ATOMIC THEORY UNIT 4 ATOMIC THEORY 1. Atomic theory: Dalton s model Thomson s model Rutherford s model Bohr s model Electron cloud model 2. Particles inside the atom Atomic number Mass number 3. Ions Cations Anions

More information

Vocabulary Review. Atom Cathode Ray Electrons Protons Neutrons Nucleus

Vocabulary Review. Atom Cathode Ray Electrons Protons Neutrons Nucleus 2/19/16 Do Now On your half sheet of paper, identify the scientist that either discovered a part of the atom or developed a theory related to atomic structure. Vocabulary Review Atom Cathode Ray Electrons

More information

Chapter 8 notes. 8.1 Matter. 8.1 objectives. Earth Chemistry

Chapter 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

Properties of Atoms and The Periodic Table. Ch 16, pg

Properties of Atoms and The Periodic Table. Ch 16, pg Properties of Atoms and The Periodic Table Ch 16, pg. 488-506 Today s Learning Objectives Describe the 5 models of the atom. Be able to arrange the 5 models of the atom in order. Explain why the models

More information

2. Which is NOT considered matter? (A) air (B) lead (C) sugar (D) sunlight. 4. Which of the following is a metalloid? (A) Se (B) Sr (C) Si (D) Sn

2. Which is NOT considered matter? (A) air (B) lead (C) sugar (D) sunlight. 4. Which of the following is a metalloid? (A) Se (B) Sr (C) Si (D) Sn Midterm Review Packet ANSWER KEY 01/26/2014 Multiple Choice Question 1. Which part of an atom is positively charged? (A) proton (B) neutron (C) electron (D) shells 2. Which is NOT considered matter? (A)

More information

H CHEM - WED, 9/7/16. Do Now Be ready for notes. Sigfig review problem. Agenda Atomic Theory. Homework. Error Analysis

H CHEM - WED, 9/7/16. Do Now Be ready for notes. Sigfig review problem. Agenda Atomic Theory. Homework. Error Analysis H CHEM - WED, 9/7/16 Do Now Be ready for notes. Sigfig review problem Agenda Atomic Theory Error Analysis Homework Possibly atomic theory paragraph THE ATOM DEFINITION TO START Atom smallest particle

More information

Name: Date: Blk: Dalton Thomson Rutherford Bohr THOMSON

Name: Date: Blk: Dalton Thomson Rutherford Bohr THOMSON Name: Date: Blk: NOTES: ATOMIC STRUCTURE I. History of the Atom Dalton Thomson Rutherford Bohr 1803 1897 1909 1913 1. DALTON - everything is made of atoms - different elements combine to form compounds

More information

Qualitative Chemistry Unit 3 Review Assignment ANSWERS. Completion: Write the word or phrase that best completes each sentence in the blank.

Qualitative Chemistry Unit 3 Review Assignment ANSWERS. Completion: Write the word or phrase that best completes each sentence in the blank. Qualitative Chemistry Unit 3 Review Assignment ANSWERS Completion: Write the word or phrase that best completes each sentence in the blank. 1. A compound has _2 or more capital letters in its formula,

More information

Chapter 4. Atomic Structure

Chapter 4. Atomic Structure Chapter 4 Atomic Structure Warm Up We have not yet discussed this material, but what do you know already?? What is an atom? What are electron, neutrons, and protons? Draw a picture of an atom from what

More information

Chapter 4. The structure of the atom. AL-COS Objectives 1, 2,3,4,7, 10, 15, 20, 21, 22, 27and 28

Chapter 4. The structure of the atom. AL-COS Objectives 1, 2,3,4,7, 10, 15, 20, 21, 22, 27and 28 Chapter 4 The structure of the atom AL-COS Objectives 1, 2,3,4,7, 10, 15, 20, 21, 22, 27and 28 You ll learn to Identify the experiments that led to the development of the nuclear model of atomic structure

More information

Your Guide for Success Chemistry Unit Name:

Your Guide for Success Chemistry Unit Name: Your Guide for Success Chemistry Unit Name: Chemistry Outline I. Classification Of Matter A. Elements 4 1. Identifying by Properties 2. Classifying Elements B. Compounds 4 1. Composition 2. Identifying

More information

ATOMIC MATH HOMEWORK

ATOMIC MATH HOMEWORK Name: Block: ATOMIC MATH HOMEWORK True/False: Indicate if each of the following is true or false. If it is false, CHANGE the underlined portion to make it true. 1. In a neutral atom of an element, the

More information

Chapter 2. Conservation of Mass. Law of Definite Proportions. Group Activity. Draw you idea of what an atom looks like.

Chapter 2. Conservation of Mass. Law of Definite Proportions. Group Activity. Draw you idea of what an atom looks like. Group Activity Draw you idea of what an atom looks like. Chapter 2 Answer the following questions: How do you know what an atom looks like at the atomic level? How do scientists know what at atom looks

More information

4. The mass of a proton is approximately equal to the mass of A an alpha particle C a positron. B a beta particle D a neutron

4. The mass of a proton is approximately equal to the mass of A an alpha particle C a positron. B a beta particle D a neutron 1. Which particles have approximately the same mass? A an electron and an alpha particle B an electron and a proton C a neutron and an alpha particle D a neutron and a proton 2. Which phrase describes

More information

Democritus s ideas don t explain chemical behavior & lacked experimental support.

Democritus s ideas don t explain chemical behavior & lacked experimental support. A1: Atomic Structure Worksheet Key (Goals 1 3, Chapter 4) 1. Democritus, who lived in Greece during the 4 th century B.C., suggested that matter is made up of tiny particles that cannot be divided. He

More information

Title: Chem Review 2 TOPIC: DISCOVERY OF ATOM

Title: Chem Review 2 TOPIC: DISCOVERY OF ATOM Title: Chem Review 2 TOPIC: DISCOVERY OF ATOM EQ: How were the 3 subatomic particles discovered? Title and Highlight Topic: EQ: Date Reflect Question: Reflect on the material by asking a question (its

More information

CHAPTER 3 THE ATOM. 1. Matter is composed extremely small particles called atoms

CHAPTER 3 THE ATOM. 1. Matter is composed extremely small particles called atoms CHAPTER 3 THE ATOM Read pgs. 107-110 I. History Democritus Greek philosopher, 400 B.C., said all matter is made up of small, indivisible particles he called atoms (Greek for indivisible ). He wasn t believed

More information

Atoms and Elements Review

Atoms and Elements Review Atoms and Elements Review YOU ARE EXPECTED TO KNOW THE MEANING OF ALL THE FOLLOWING TERMS: ALCHEMY ELEMENT ATOM SUBATOMIC DEMOCRITUS DALTON THOMSON RUTHERFORD BOHR ELECTRON NEUTRAL PROTON NEUTRON ORBIT

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

To remain valid, models and theories must:

To remain valid, models and theories must: Note Taking Guide: Episode 301 Model: A idea used to explain facts in. Theory: An of facts and. To remain valid, models and theories must: all known enable to make correct Democritus: proposed the of an

More information

Atoms and their structure

Atoms and their structure Atoms and their structure History of atomic theory Not the history of atom, but the idea of the atom Original idea Ancient Greece (400 B.C..) Democritus and Leucippus Greek philosophers Another Greek Aristotle

More information

Name Honors Chemistry: Atoms, protons, electrons, neutrons, and the Periodic Table

Name Honors Chemistry: Atoms, protons, electrons, neutrons, and the Periodic Table Name Honors Chemistry: Atoms, protons, electrons, neutrons, and the Periodic Table 1. In the Periodic Table below, draw or shade in the following a. the numbers for the 8 main groups (also, indicate the

More information

Chapter 3 Atoms: The Building Blocks of Matter. Honors Chemistry 412

Chapter 3 Atoms: The Building Blocks of Matter. Honors Chemistry 412 Chapter 3 Atoms: The Building Blocks of Matter Honors Chemistry 412 Foundations of Atomic Theory Democritus Greek Philosopher 460-370 B.C. Stated Matter could be divided into smaller & smaller particles

More information

Chemistry CRT Study Guide First Quarter

Chemistry CRT Study Guide First Quarter Number AL COS # 1. #1.0 Classify sodium chloride as an element, mixture, compound, or colloid. Compound 2. #1.0 Classify air as an element, mixture, compound, or colloid. Mixture 3. #1.0 Classify a blueberry

More information