BEGINNING OF ATOMIC THEORY
|
|
|
- Christine Joseph
- 5 years ago
- Views:
Transcription
1 Skills Worksheet Directed Reading B Section: Development of the Atomic Theory THE BEGINNING OF ATOMIC THEORY 1. What does the word atom mean? a. dividable b. invisible c. hard particles d. not able to be divided 2. Why weren t Democritus s ideas accepted? a. Bohr did not agree with his theory. b. Dalton proved Democritus wrong. c. Aristotle did not agree with his theory. d. Rutherford proved Democritus wrong. From Aristotle to Modern Science 3. What is the smallest particle into which an element can be divided? a. a nucleus b. a proton c. an atom d. a neutron DALTON S ATOMIC THEORY BASED ON EXPERIMENTS 4. Which of the following ideas was part of Dalton s theories? a. All substances are made of atoms. b. Atoms can be divided. c. Atoms can be destroyed. d. Most substances are made of atoms. Holt Science and Technology 5 Introduction to Atoms
2 Not Quite Correct 5. What happened in the late 1800s? a. Dalton created a new theory. b. Dalton disproved his own theory. c. Dalton s theory was proved. d. Dalton s theory changed. THOMSON S DISCOVERY OF ELECTRONS Read the words in the box. Read the sentences. Fill in each blank with the word or phrase that best completes the sentence. electrons cathode-ray tube particles positively 6. Thomson experimented with a. 7. Thomson discovered that a charged plate attracted the beam. 8. Thomson concluded that the beam was made of that have negative electric charges. 9. The negatively charged particles Thompson discovered are called. Holt Science and Technology 6 Introduction to Atoms
3 Like Plums in a Pudding 10. What did Thomson believe about electrons? a. They are mixed throughout an atom. b. They are in the center of an atom. c. They are positively charged. d. They are absent from an atom. RUTHERFORD S ATOMIC SHOOTING GALLERY Surprising Results 11. What did Rutherford expect the particles to do? a. to pass right through the gold foil b. to deflect to the sides of the gold foil c. to bounce straight back d. to become blobs of matter WHERE ARE THE ELECTRONS? 12. Which of the following statements is NOT true of Rutherford s results? a. Some of the particles turned to one side. b. some of the particles did not move. c. Most of the particles passed through the gold foil. d. Some of the particles bounced straight back. 13. What is an atom is made up of? a. mostly empty space. b. helium. c. gold particles. d. large particles. Holt Science and Technology 7 Introduction to Atoms
4 Far From the Nucleus 14. What did Rutherford believe was in the center of an atom? a. an electron b. a nucleus c. a particle d. a proton BOHR S ELECTRON LEVELS 15. What did Bohr study? a. the way atoms react to light b. the size of atoms c. the diameter of the nucleus d. the division of atoms 16. How did Bohr s model propose that electrons move around the nucleus? a. a variety of ways b. haphazardly c. between the levels d. in certain paths The Modern Atomic Theory 17. What model represents current atomic theory? a. electron-cloud model b. plum-pudding model c. Rutherford s model d. Bohr s model Holt Science and Technology 8 Introduction to Atoms
5 TEACHER RESOURCE PAGE Answer Key Directed Reading A SECTION: DEVELOPMENT OF THE ATOMIC THEORY 1. D 2. C 3. Aristotle disagreed with Democritus. At the time, Aristotle had more influence on what people thought than Democritus did. Consequently, people believed Aristotle. 4. atom 5. C 6. Dalton s results suggested that elements combine in specific proportions because they are made of single atoms. 7. positively, negative 8. electrons 9. atom 10. A 11. Most of the particles passed right through the gold foil, some of the particles were deflected, and some of the particles bounced straight back. 12. D 13. nucleus 14. Electron clouds are regions inside the atom where electrons are likely to be found. SECTION: THE ATOM 1. B 2. F 3. D 4. E 5. A 6. C 7. B 8. hydrogen, proton, electron (no particular order for proton and electron) 9. nucleus 10. helium 11. protons and neutrons (either order) 12. protons 13. A 15. B 16. C 17. isotopes 18. atomic mass 19. C 20. A 21. D 22. B Directed Reading B SECTION: DEVELOPMENT OF ATOMIC THEORY 1. D 2. C 3. C 4. A 5. D 6. cathode-ray tube 7. positively 8. particles 9. electrons 10. A 11. A 12. B 13. A 15. A 16. D 17. A SECTION: THE ATOM 1. B 2. D 3. C 4. A 5. B 6. hydrogen, electron 7. helium 8. neutrons 9. atomic number 10. atomic mass unit 11. A 12. B 13. C 15. C 16. mass number 17. atomic mass 18. strong force 19. gravitational force 20. weak force 21. electromagnetic force Holt Science and Technology 61 Introduction to Atoms
Name Class Date. Section: Development of the Atomic Theory THE BEGINNING OF ATOMIC THEORY
Skills Worksheet Directed Reading A Section: Development of the Atomic Theory THE BEGINNING OF ATOMIC THEORY Write the letter of the correct answer in the space provided. 1. Around 440 BCE, who thought
Directed Reading B. Section: Development of the Atomic Theory THE BEGINNING OF ATOMIC THEORY. is a(n). DALTON S ATOMIC THEORY BASED ON EXPERIMENTS
Skills Worksheet Directed Reading B Section: Development of the Atomic Theory THE BEGINNING OF ATOMIC THEORY 1. The word atom comes from the Greek word atomos, which means a. dividable. b. invisible. c.
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
The following is a quote by Democritus (c. 460 c. 370 bce). Paraphrase this quote in your own words in your science journal.
Section 1 Development of the Atomic Theory Bellringer The following is a quote by Democritus (c. 460 c. 370 bce). Paraphrase this quote in your own words in your science journal. Color exists by convention,
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.
DEMOCRITUS - A philosopher in the year 400 B.C. - He didn t do experiments and he wondered if atoms kept on being divided, that there would only be
DEMOCRITUS A philosopher in the year 400 B.C. He didn t do experiments and he wondered if atoms kept on being divided, that there would only be one undividable particle left. He discovered that this was
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
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
Vocabulary and Section Summary A
Skills Worksheet Vocabulary and Section Summary A Development of the Atomic Theory VOCABULARY In your own words, write a definition of the following terms in the space provided. 1. atom 2. electron 3.
Atomic Structure. History of Atomic Theory
Atomic Structure History of Atomic Theory Democritus (460-370 BC) Was the to come up with the idea of atom Believed that all matter was composed of Which is derived from the Greek word Atomos meaning He
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
What is matter? Matter is anything that has mass and takes up space. Matter is made up of atoms.
Matter What is matter? Matter is anything that has mass and takes up space. Matter is made up of atoms. Is it matter? Can you measure the object? Does it take up space? Does the object have a mass? Come
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
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
The Development of Atomic Theory
The Development of Atomic Theory Ideas & Theories in Science Change Our theory about the atom has changed over time as new studies are done. Even though no one has ever seen an atom up close we are still
SNC1D1 History of the Atom
SNC1D1 History of the Atom What is the atom? Atoms are the building block for all matter: Atoms make up elements! Elements combine to make compounds!2 ATOMIC MODEL TIMELINE 400 B.C PRESENT DAY ATOMIC MODEL
Particle Theory of Matter. By the late 1700s, scientists had adopted the Particle Theory of Matter. This theory states that:
Particle Theory of Matter By the late 1700s, scientists had adopted the Particle Theory of Matter. This theory states that: all matter is made up of very tiny particles each pure substance has its own
Make sure this is handed in!
Make sure this is handed in! Based on the 3 groups in early atomic history, pick one of the groups and explain how they progressed the current knowledge of atoms and elements at their time. OR Explain
1. Based on Dalton s evidence, circle the drawing that demonstrates Dalton s model.
Various models of the ATOM Dalton Model John Dalton developed the first atomic model in 1808. Before him people, mostly philosophers, had speculated about the smallest unit of matter and two theories prevailed.
History of the OBJECTIVES. ESSENTIAL QUESTION What evidence is there for the existence of atoms and their sub-atomic particles?
History of the 09/15/2016 OBJECTIVES Understand the law of definite proportions. Define a scientific law and identify how observations become a law. Explain that a scientific theory is not established
Atomic Theory. Developing the Nuclear Model of the Atom. Saturday, January 20, 18
Atomic Theory Developing the Nuclear Model of the Atom Democritus Theory: Atom, the indivisible particle c. 300 BC Democritus Problem: No scientific evidence c. 300 BC Dalton Theory: The solid sphere model
1 Development of the Atomic Theory
CHAPTER 11 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
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
HISTORY OF THE ATOM ATOMA
S.MORRIS 2006 HISTORY OF THE ATOM 460 BC Democritus develops the idea of atoms he pounded up materials in his pestle and mortar until he had reduced them to smaller and smaller particles which he called
Get out your diagram from your research paper. Get out a sheet of paper to take some notes on.
Bellwork: Get out your diagram from your research paper. Get out a sheet of paper to take some notes on. Fill in the Following Table in your notes (assume an atom unless otherwise stated: Symbol Protons
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
Early Ideas About Matter
Early Ideas About Matter Democritus (460 370 BC) believed that matter is made of small, solid objects called atomos, from which the English word atom is derived. Early Ideas About Matter (cont.) Aristotle
7.1 Development of a Modern Atomic Theory
7.1 Development of a Modern Atomic Theory Development of the Atomic Theory Many scientists in different countries have contributed to the understanding of matter - atoms John Dalton Credited with developing
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
SCH3U1 This presentation and more can be found at
SCH3U1 Today s Learning goals: Review history of the atomic model Practice using standard atomic notation Introduce radioisotopes This presentation and more can be found at http://lorenowicz.weebly.com
NOTES ON CHAPTER 4: ELEMENTS AND THE PERIODIC TABLE. 4.1 Introduction to Atoms
NOTES ON CHAPTER 4: ELEMENTS AND THE PERIODIC TABLE 4.1 Introduction to Atoms The first people to think about the nature of matter were the ancient Greeks. Around 430 B.C, Democritus, a Greek philosopher,
General Chemistry Standard : Identify the significance of the various outcomes of Thomson s and Rutherford s experiments
Not the history of the atom, but the idea of the atom The atom was not discovered until recently Original Idea Ancient Greece (400 BC) Proposed by lesser-known scientists They looked at a beach made of
The idea of an atom began about 400 B.C. with many Greek philosophers, like Democritus, working to figure out what everything was made of.
The idea of an atom began about 400 B.C. with many Greek philosophers, like Democritus, working to figure out what everything was made of. Always move & join together Atomas means indivisible I m Aristotle
Ancient Greek Models of Atoms
Atomic Theory Ancient Greek Models of Atoms The philosopher Democritus believed that all matter consisted of extremely small particles that could not be divided. He called these particles atoms from the
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
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
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
Atomic Structure. For thousands of years, people had many ideas about matter Ancient Greeks believed that everything was made up of the four elements
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, they were still able to propose
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
Atomic Theory. Past and Present: pieces of a puzzle
Atomic Theory Past and Present: pieces of a puzzle The First Atomic Hypothesis Democritus (460 370 BC): Greek philosopher Speculated that matter is composed of atoms which move through empty space Atoms
Democritus thought atoms were indivisible & indestructible Lacked experimental support 4 th century B.C.
Chapter 5 Democritus thought atoms were indivisible & indestructible Lacked experimental support 4 th century B.C. Democritus thought atoms were indivisible & indestructible Lacked experimental support
CHEMISTRY. Matter and Change. Table Of Contents. Section 4.1 Early Ideas About Matter. Unstable Nuclei and Radioactive Decay
CHEMISTRY 4 Table Of Contents Matter and Change Section 4.1 Early Ideas About Matter Chapter 4: The Structure of the Atom Section 4.2 Section 4.3 Section 4.4 Defining the Atom How Atoms Differ Unstable
4.2 Structure of the Nuclear Atom > Chapter 4 Atomic Structure. 4.2 Structure of the Nuclear Atom. 4.1 Defining the Atom
Chapter 4 Atomic Structure 4.1 Defining the Atom 4.2 Structure of the Nuclear Atom 4.3 Distinguishing Among Atoms 1 CHEMISTRY & YOU How did scientists determine the structures that are inside an atom?
2 Copyright Pearson Education, Inc., or its affiliates. All Rights Reserved.
CHEMISTRY & YOU Chapter 4 Atomic Structure 4.1 Defining the Atom 4.2 Structure of the Nuclear Atom How did scientists determine the structures that are inside an atom? X-rays are used to see structures
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,
Atom s Structure. Chemistry is the study of the structure, characteristics and behavior of matter. The basic
AlMarzooqi 1 Hamad AlMarzooqi Professor Kafle ESL 015 26 February 2013 Atom s Structure Chemistry is the study of the structure, characteristics and behavior of matter. The basic unit of matter is an atom,
Physics 30 Modern Physics Unit: Atomic Basics
Physics 30 Modern Physics Unit: Atomic Basics Models of the Atom The Greeks believed that if you kept dividing matter into smaller and smaller pieces, you would eventually come to a bit of matter that
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
Atomic Structure. A model uses familiar ideas to explain unfamiliar facts observed in nature.
Atomic Structure 1 2 This model of the atom may look familiar to you. This is the Bohr model. In this model, the nucleus is orbited by electrons, which are in different energy levels. A model uses familiar
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
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.
Chemistry. - Many philosophers concluded that matter was composed of things such as earth, -Democritus: -Aristotle: -Dalton:
Chemistry Made by Saleem Abu-Tayeh Chapter 4 - Many philosophers concluded that matter was composed of things such as earth, water, air, and fire. It was also commonly accepted that matter could be endlessly
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
Development of Atomic Theory Elements of chemistry- Atoms, the building blocks of matter Video
Development of Atomic Theory Elements of chemistry- Atoms, the building blocks of matter Video 2 CH 4- Atoms 1 Discovering the Atom In this lesson we will take a look at the scientists who explored the
Chapter 4. History of the atom. History of Atom Smallest possible piece? Atomos - not to be cut. Atoms and their structure
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. Looked at
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
Greek Philosophers (cont.)
Greek Philosophers (cont.) Many ancient scholars believed matter was composed of such things as earth, water, air, and fire. Many believed matter could be endlessly divided into smaller and smaller pieces.
) The nucleus of an atom, when compared to the entire atom, is (Circle two).
Unit 3: The Atom Review Packet Directions: Answer the following questions WITHOUT using your notes first. This will be a great way to study for your test. Then, get out your notes and go back and fill
HIGH SCHOOL SCIENCE. Physical Science 9: Atomic Structure
HIGH SCHOOL SCIENCE Physical Science 9: Atomic Structure WILLMAR PUBLIC SCHOOL 2013-2014 EDITION CHAPTER 9 Atomic Structure In this chapter you will: 1. Compare and contrast quarks, leptons, and bosons.
What is matter? Matter is anything that has mass and takes up space. What is matter made of??
What is matter? Matter is anything that has mass and takes up space What is matter made of?? Atoms. All matter is made of atoms. Atoms are the building blocks of Matter Remember???? The Cell theory - 3
PROGRESSION OF THE ATOMIC MODEL
PROGRESSION OF THE ATOMIC MODEL By 1808, it was widely accepted that matter was made up of ELEMENTS, which consisted of tiny PARTICLES called ATOMS. After 2000 years - DEMOCRITUS was right all along John
EARLY VIEWS: The Ancient Greeks
Feb 7 11:59 AM EARLY VIEWS: The Ancient Greeks Empedocles (c. 450 B.C.) proposed Four Element theory he thought that matter was composed of four elements: AIR, EARTH, FIRE and WATER elements mixed together
Atomic Theory. Democritus to the Planetary Model
Atomic Theory Democritus to the Planetary Model Democritus Greek philosopher (460-370 BCE) Believed in the philosophy of materialism With Leucippus, they though that matter can not be divided infinitely.
4.1 Structure of the Atom
4.1 Structure of the Atom How do atoms differ from each other? What are atoms composed of? What are the subatomic particles? 2-1 Structure of the Atom Atoms actually are divisible. They are composed of
Memorial to a Scientist
Memorial to a Scientist 1. My Question of Inquiry: Use this sheet to outline how you will collect and present the information to the class. My Group s Scientist: 1 Part I: Memorial to a Scientist: John
Understanding the Atom
Understanding the Atom CHAPTER 9 LESSON 1 Discovering Parts of an Atom What do you think? Read the three statements below and decide whether you agree or disagree with them. Place an A in the Before column
Chemistry. Chapter 14 Section 1
Chemistry Chapter 14 Section 1 What is matter? Matter is anything that has mass and takes up space What is matter made of?? Atoms. All matter is made of atoms. Atoms are the building blocks of Matter There
Understanding the Atom
Name Date Period 3.1 Discovering Parts of an Atom Directions: On the line before each statement, write correct if the statement is correct or not correct if the statement is not correct. If the statement
Where it came from and what we know now
Where it came from and what we know now History of the Atom The first mention of the atom came from Democritus in ancient Greece He suggested that the universe was made up of small, indivisible units called
Understanding the Atom 1.3
Understanding the Atom 1.3 Introduction to Atoms 1.What are some ways that scientists have described the atom? 2.What are the parts of the atom, and how are they arranged? 3.How are atoms of all elements
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
Chapter 2: The Atomic Nature of Matter Olmsted and Williams, 3 rd Edition
Chapter 2: The Atomic Nature of Matter Olmsted and Williams, 3 rd Edition HW: 5, 7, 10, 13, 15, 17, 19, 22, 23, 27, 30, 31, 35, 36, 41, 42, 59, 63, 69, 70 Atomic Theory and How It Came About Aristotle
Atomic Theory. Why do we believe that all matter is made of atoms?
Atomic Theory Why do we believe that all matter is made of atoms? 1. Law of definite composition: Compounds (like H 2 O) contain the same elements in the same proportions by mass regardless of the size
Unit 3 Lesson 1 The Atom. Copyright Houghton Mifflin Harcourt Publishing Company
As a Matter of Fact What makes up matter? The Greek philosopher Democritus thought matter could be divided into smaller units until you obtained a particle that could not be cut. He called this particle
Chap 4 Bell -Ringers
Chap 4 Bell -Ringers The Structure of the Atom The Atom has a Structure What we ve seen so far Chapter 1 The Science of Chemistry - Chemistry is about discovering and understanding natural laws using the
ATOM. Rich -Paradis. Early Thoughts Aristotle-- Continuous theory. Matter can be divided indefinitely. Greeks
ATOM Early Thoughts Aristotle-- Continuous theory Greeks Matter can be divided indefinitely matter is made up of particles--4 elements 4 elements --air--fire--water- -- earth Democritus --Discontinuous
Scientist wanted to understand how the atom looked. It was known that matter was neutral. It was known that matter had mass
Atom Models Scientist wanted to understand how the atom looked It was known that matter was neutral It was known that matter had mass They used these ideas to come up with their models, however science
Chapter 4 Jeopardy Review
Chapter 4 Jeopardy Review Atom Models of the Atom Atomic Theory Calculating Subatomic Particles Isotopes 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500
Time to develop a model
ATOMIC THEORY ONCE UPON A TIME People have been fascinated with matter for a long time. What is matter? What is all this stuff around us made of? Can it be broken down? Are there different types of matter?
Chemistry Chapter 3. Atoms: The Building Blocks of Matter
Chemistry Chapter 3 Atoms: The Building Blocks of Matter I. From Philosophical Idea to Scientific Theory History of the Atom The Ancient Greeks were the first to come up with the idea of the atom. Democritus
Ancient Atomic Theories
Atomic Theory What is an Atom? An ATOM is the smallest part of an element that has all of the element s properties. Atoms of different elements are different from each other. Atomic Theory This is the
Atomic Theories Chapter 4.1. How do we know about atoms when no one has ever seen inside an atom?
Atomic Theories Chapter 4.1 How do we know about atoms when no one has ever seen inside an atom? Greek Philosopher Democritus Lived 460 370 BCE Believed it is IMPOSSIBLE to divide matter ad infinitum.
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
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
Notes:&&Unit&4:&Atomics& & & & & & & & & & & & & & & & &
Name: RegentsChemistry:Mr.Palermo Notes:Unit4:Atomics! www.mrpalermo.com Name: $ Key$Ideas$ Themodernmodeloftheatomhasevolvedoveralongperiodoftimethroughtheworkofmany scientists.(3.1a) Eachatomhasanucleus,withanoverallpositivecharge,surroundedbyoneormorenegatively
Name Date Class DEFINING THE ATOM
4.1 DEFINING THE ATOM Section Review Objectives Describe Democritus s ideas about atoms Explain Dalton s atomic theory Describe the size of an atom Vocabulary atom Dalton s atomic theory Part A Completion
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
Bellwork: 2/6/2013. atom is the. atom below. in an atom is found in the. mostly. 2. The smallest part of an. 1. Label the parts of the
Bellwork: 2/6/2013 1. Label the parts of the atom below. B 2. The smallest part of an atom is the. 3. The majority of the mass in an atom is found in the. A C 4. An atom is made up of mostly. Bellwork:
Atomic Theory. Introducing the Atomic Theory:
Atomic Theory Chemistry is the science of matter. Matter is made up of things called atoms, elements, and molecules. But have you ever wondered if atoms and molecules are real? Would you be surprised to
9/23/2012. Democritus 400 B.C. Greek philosopher Proposed that all materials are made from atoms. Coined Greek word atmos, meaning indivisible.
Mr. Sudbury Atoms are too small to see with your eyes. Atoms are too small to see with the most powerful microscopes. Scientist use models to explain atoms. A scientific model is an representation containing
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
Hot Sync. Materials Needed Today
Chapter 4 Lesson 2 Materials Needed Today Please take these materials out of your backpack. Pencil Blank sheet of paper for notes. Hot Sync Friday 1/10/14 Answer the following questions in complete sentences
9.11 Atomic Theory. My Future Matters. Objectives: - SWBAT describe and explain the four historical models of the atom and how they evolved over time.
9.11 Atomic Theory Objectives: - SWBAT describe and explain the four historical models of the atom and how they evolved over time. Read & Analyze: Directions: Read the following text. While you are reading
Bravo 15,000 kilotons
Bravo 15,000 kilotons All matter is composed of atoms Atoms cannot be subdivided, created, or destroyed in ordinary chemical reactions. However, these changes CAN occur in nuclear reactions! Atoms of an
Atoms, Elements, and the Periodic Table
chapter 00 3 3 Atoms, Elements, and the Periodic Table section 1 Structure of Matter Before You Read Take a deep breath. What fills your lungs? Can you see it or hold it in your hand? What You ll Learn
atomos is a Greek word which means indivisible
The History of Atomic Theory i.e. the history of the development of thought about what an atom is. 1st timeframe: around 5 B.C. : This was the time of the Ancient Greeks (in Athens, Greece). During the
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
ATOMIC STRUCTURE. Name: Period: Date: 1) = a generalization of scientific observations that what happens (does explain)
ATOMIC STRUCTURE Name: Period: Date: I. LAW vs. THEORY: 1) = a generalization of scientific observations that what happens (does explain) 2) (model) = a set of assumptions used to explain observations
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,
Unit 2 Atomic Structure and Nuclear Chemistry
Chemistry 1 West Linn High School Unit 2 Packet and Goals Name: Period: Unit 2 Atomic Structure and Nuclear Chemistry Unit Goals: As you work through this unit, you should be able to: 1. describe Dalton