Chemistry-Part 1. Inside the Atom
|
|
|
- Ronald Wade
- 5 years ago
- Views:
Transcription
1 ChemistryPart 1 Inside the Atom
2 What is an Atom? Matter is anything that takes up space and has mass. Matter is made up of atoms. Atoms: the smallest unit into which matter can be divided building blocks of matter comprised of a nucleus (at it s center) and an electron cloud (surrounding the nucleus) made up of subatomic particles
3 INVESTIGATE. Take a piece of paper, and cut it in half. Cut the half piece of paper in half again. Continue until you cannot Cut the remaining piece of paper any longer (Remember, Scissor Safety!!!) How many times were you able to cut it?
4 Consider This Do you think we could keep cutting the paper forever? Why or why not? How many times would you have to cut the paper in half to get the size of an atom? Best Guess?
5 Consider This You would have to cut the paper in half around thirtyone (31) times to get to the size of any atom.
6 FAST FACTS: It would take a stack of about 50,000 aluminum atoms to equal the thickness of a sheet of aluminum foil from your kitchen If you could enlarge a penny until it was as wide as the US, each of its atoms would be only about 3 cm in diameter about the size of a ping pong ball A human hair is about 1 million carbon atoms wide A typical human cell contains roughly 1 trillion atoms A speck of dust might contain 3x10 12 (3 trillion) atoms It would take you around 500 years to count the number of atoms in a grain of salt
7 What are Subatomic Particles? smaller than an atom protons (+) positive charge neutrons (0) neutral charge electrons () negative charge
8 Early Atomic Models Rutherford Model: Most empty space. Small, Positive Nucleus Contained protons and electrons scattered around the outside.
9 Early Atomic Models Rutherford Model:
10 Early Atomic Models Bohr Model: Electrons move in defined orbits around the nucleus.
11 Early Atomic Models Bohr Model:
12 Early Atomic Models Electron Cloud Model: sometimes called the wave model. spherical cloud of varying density. varying density shows where an electron is more or less likely to be.
13 Early Atomic Models Electron Cloud Model:
14 Subatomic Particles What are Protons? positively charged particles. Help make up the nucleus of the atom. Equal to the atomic number of the atom. Contributes to the atomic mass. Equal to the number of electrons
15 Subatomic Particles What are Neutrons? neutral particles; have no charge. Help make up the nucleus of the atom. Contributes to the atomic mass
16 Subatomic Particles What are Electrons? negatively charged particles. Found outside the nucleus of atom in the electron orbitals. Each orbit/level can hold a different number of electrons. 1 st Orbital 2 e s, 2 nd and on Orbital 8 e s.,
17 Subatomic Particles Valence Electrons: Found in the outermost energy level of the electron cloud. (Called the valence shell) Involved in bonding. Determine the chemical properties of an element.
18 Subatomic Particles
19 Atomic Center Nucleus Protons and neutrons are grouped together to form the center or nucleus of the atom.
20 How are Atoms Described? Atomic Number = number of Protons. In a neutral atom, the number of protons = the number of electrons. Atomic Mass is the number of Protons + the number of Neutrons.
21 Example: Oxygen Atom: Bohr Model:
22 Changing the Properties of Atoms: An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
23 Changing the Properties of Atoms: An isotope is each of two or more forms of the same element that contain equal numbers of protons, but different numbers of neutrons in their nuclei, and have a different atomic mass but not in different chemical properties. A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
24 What Forms If?
Matter Anything that has mass and takes up space (volume) Examples: A brick has mass and takes up space A desk has mass and takes up space A pencil has mass and takes up space Air has mass and takes up
Unit 4: Atomic Structure and the Periodic Table
1 Unit 4: Atomic Structure and the Periodic Table Vocabulary: Atom Proton Neutron Electron Nucleus Term Definition Sub-atomic particle with positive (+) charge; located in nucleus of atom; determines identity
Atoms & Atomic Structure
Atoms & Atomic Structure - An atom is the smallest piece of an element - are composed of three types of sub-atomic particles: protons, neutrons & electrons Nucleus = central portion of atom - small and
The ATOM. By Ms Toal
The ATOM By Ms Toal How small is an atom? Remember the metric staircase from the beginning of the year? Millimeter is.001 M and it is three steps to the right from the base unit. Basically Chemistry goes
THE 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.
The structure of the Atom. Chemistry chapter 4
The structure of the Atom Chemistry chapter 4 Rutherford-Bohr Model Niels Bohr (1922) Proposed improvements to Rutherford Atomic Model. For this reason the planetary model of the atoms is sometimes called
Structure of the Atom. Atomic Components
Chapter 19 Atoms 0 Matter is anything that takes up space and has mass. All matter is made of atoms. 0 Atoms are the basic building blocks of matter. They make up everything around us; Your desk, the board,
Observation information obtained through the senses; observation in science often involves measurement
Review Sheet Unit 1: The Atom Chemistry the study of the composition of matter and the changes matter undergoes Scientific Method Scientific method a logical, systematic approach to the solution of a scientific
Chemistry Vocabulary. These vocabulary words appear on the Chemistry CBA in addition to being tested on the Chemistry Vocabulary Test.
Chemistry Vocabulary These vocabulary words appear on the Chemistry CBA in addition to being tested on the Chemistry Vocabulary Test. atom the smallest unit of an element that still represents that element.
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
Chapter 3. Chemistry of Life
Chapter 3 Chemistry of Life Content Objectives Write these down! I will be able to identify: The make-up of matter. Why atoms form bonds. Some important interactions between substances in living things.
1. The total number of protons AND neutrons in Aluminum 27 is:
The ATOM test VERSION B Name 1. The total number of protons AND neutrons in Aluminum 27 is: 2. The number of protons in Aluminum 27 is: 3. The number of electrons in Aluminum 27 is: 4. The number of neutrons
Matter. Anything that has mass and takes up space. (has volume)
Matter and more Matter Anything that has mass and takes up space. (has volume) Mass is the measure of the amount of matter something is made of. It is measured in grams Weight is the measure of gravitational
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.
atomic structure practice test D) neutrons and protons B) empty space and has a small, positively charged nucleus C) neutron
atomic structure practice test 1. The major portion of an atom's mass consists of A) electrons and protons B) electrons and neutrons C) neutrons and positrons D) neutrons and protons 2. Which subatomic
The term valent means outermost, therefore only the electrons on the outermost shell are called valent.
The atom is the smallest basic unit of an element which possesses the properties of the element. Structure of the Atom The term valent means outermost, therefore only the electrons on the outermost shell
The 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
4-1: Atomic Structure
Ch4 Atoms and the Periodic Table Page 1 4-1: Atomic Structure Tuesday, August 18, 2015 5:49 PM Key terms: 1. 2. 3. 4. 5. 6. Nucleus - an atom's central region which is made up of protons and neutrons Proton
2-1 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?
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
Atomic Structure Practice Questions
Atomic Structure Practice Questions 1. Experiments performed to reveal the structure of atoms led scientists to conclude that an atom s (1) positive charge is evenly distributed throughout its volume (2)
DUE DATE: JUNE 18 TH. SUMMER REV: Atomic Structure
NAME: DUE DATE: JUNE 18 TH AP Chemistry SUMMER REV: Atomic Structure Why? Atoms and isotopes are identified by the numbers of protons, neutrons and electrons they contain. Before you can understand the
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
Atomic Structure 11/9/04 Name
Atomic Structure 11/9/04 Name Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. The Greek philosopher Democritus coined what word for a tiny
4. Structure of the Atom. Mark (1) Mark (1) Mark (1)
4. Structure of the Atom Q 1 Write the electronic configuration of chlorine. Q 2 What determines the chemical nature of an element? Q 3 What do you mean by atomic number of an element? Q 4 Define cathode
Short 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?
The Chemistry of Life Chapter 2. Prof. J. Dodd
The Chemistry of Life Chapter 2 Prof. J. Dodd Why should we study chemistry in C, H, O, N Atoms are composed of 3 main particles: (subatomic particles) Protons (+) Neutrons Electrons (-) Protons and Neutrons
REVIEW 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
Atomic Structure. Created by G.Baker.
Atomic Structure Created by G.Baker An element refresher Matter is anything that takes up space and has mass. It can not be created or destroyed but transferred. Everything on the planet is made of elements.
Chapt. 2 The Nature of Molecules
Most of the Universe consists of matter and energy. Energy is the capacity to do work. Matter has mass and occupies space. All matter is composed of basic elements. Elements are substances consisting of
Atoms and Their Structures
Chapter Menu Section 2.1 Section 2.2 Atoms and Their Structures Electrons in Atoms Click a hyperlink to view the corresponding slides. Atoms and Their Structures Relate historic experiments to the development
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
Chapter 4: Structure of the Atom Science
Chapter 4: Structure of the Atom Science 1. What are canal rays? Canal rays are positively charged radiations that can pass through perforated cathode plate. These rays consist of positively charged particles
Chapter #1 - Atomic Structure
Chapter #1 - Atomic Structure Atomic Theories Democritus (460-340 BC) Democritus believed that all matter consisted of extremely small particles that could not be divided. He called them atoms from the
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
The Atom & Periodic Table. Unit 2 Topics 4-6
The Atom & Periodic Table Unit 2 Topics 4-6 Electrons in Atoms Topic 4 Describe Bohr s model of the atom. Sketch it! Bohr - A review electrons exist in orbits around the nucleus. Bohr - IB Information
UNIT 3 DENSITY STRUCTURE S AND ISOTOPES
UNIT 3 DENSITY STRUCTURE S AND ISOTOPES What is density and how to use it? A Brief History of Chemistry Structure of an Atom How to make Ions? What are Isotopes? DENSITY Density: is the mass of a substance
1.1 The Fundamental Chemistry of life
1.1 The Fundamental Chemistry of life Matter makes up everything in the universe, including all living organisms. Matter is composed of elements, a pure substance that cannot be broken down into simpler
SBI4U 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
Lesson 12: Atoms and Subatomic Particles
NOTES Name: Date: Class: Lesson 12: Atoms and Subatomic Particles Element: fundamental substance that ; all matter consists of ~100 elements Atom: that can exist; smallest unit of an element that can enter
Card 1 Chapter 18. Card 2. Chapter 18. Negative particles that surround the nucleus (like planets around the sun)
Card 1 Card 2 Positive particles in the nucleus of the atom Negative particles that surround the nucleus (like planets around the sun) Card 3 Card 4 Neutral particles in the nucleus of the atom. They help
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 2. Atomic Structure
Atomic Structure Chapter 2 What particles compose the substances around us? When you use the term particle to explain the different properties of a solid, liquid or gas, you are referring to the simplest,
Ionic Bond Proton. Cation Electron. Valence Electrons Atomic mass. Octet Rule Isotope
Atoms and Ions Test Study Guide Physical Science Ms. Rowlen 2017 Know these definitions. Atom Ionic Bond Proton Ion Neutron Cation Electron Anion Atomic number Valence Electrons Atomic mass Octet Rule
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.
Democritus & Leucippus (~400 BC) Greek philosophers: first to propose that matter is made up of particles called atomos, the Greek word for atoms
AP Chemistry Ms. Ye Name Date Block The Evolution of the Atomic Model Since atoms are too small to see even with a very powerful microscope, scientists rely upon indirect evidence and models to help them
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
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
Question 1: What are canal rays? Answer: Canal rays are positively charged radiations. These rays consist of positively charged particles known as
Question 1: What are canal rays? Canal rays are positively charged radiations. These rays consist of positively charged particles known as protons. They were discovered by Goldstein in 1886. Question 2:
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)
Exploring Atoms. Introduction
Exploring Atoms Introduction Atoms All physical entities are made of matter. Matter is anything which has mass and takes up space. There are three common states of matter--solid, liquid, and gas--on earth.
2-1 The Nature of Matter
Biology 1 of 40 2 of 40 The study of chemistry begins with the basic unit of matter, the atom. The Greek philosopher Democritus called the smallest fragment of matter the atom, from the Greek word atomos.
Chemistry is taking place in your body all the time. Your body is made up of a variety of chemicals, and chemical reactions that take place within
Basic Chemistry Chemistry is taking place in your body all the time. Your body is made up of a variety of chemicals, and chemical reactions that take place within you. There is also chemistry taking place
Test Topics: Periodic Table, Atomic Theory, Physical/Chemical Properties, Atom, Isotopes, Average Atomic Mass
Elemental Properties Review Worksheet Test Topics: Periodic Table, Atomic Theory, Physical/Chemical Properties, Atom, Isotopes, Average Atomic Mass Periodic Table 1. List the element symbols for the following
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,
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
ELECTRON THEORY
ELECTRON THEORY We will start our discussion of electron theory with a few definitions. Matter- is anything that has mass and takes up space. The basic unit of matter is the atom. Another Definition Energy-
Atomic Theory Development
Atomic Theory Development Born as early as 400 BC, it took more than 2000 years before Science was ready to accept the idea of atomic structure of matter and another 150 years to develop a good model!
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
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
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
Chapter 5 Atoms: The Building Blocks f of Matter
Chapter 5 Atoms: The Building Blocks of Matter Atomic Models How Humans Developed Modern Atomic Theory Democritus- Ancient Greek Matter cannot be divided into smaller and smaller pieces forever, eventually
1. Ionisation of gases in the discharge tube proved that atoms have subatomic particles
1 Chapter notes Class: IX Chapter Name: Structure of atom Top concepts 1. Ionisation of gases in the discharge tube proved that atoms have subatomic particles 2. Summary of characteristics of electrons,
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
Unit 7: The Periodic Table
Unit 7: The Periodic Table Name Class Website: http://pilarz.weebly.com PS:7 TLW categorize elements of the periodic table according to common properties and explain how elements differ in structural parts
Name: Period: ELEMENTS AND ATOMS Chapter 1. The Building Blocks of matter pages L6-11
Name: Period: ELEMENTS AND ATOMS Chapter 1 The Building Blocks of matter pages L6-11 1. The simplest pure substances are called. 2. Why are elements often called the building blocks of matter? 3. Is the
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?
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
Matter. Atoms and Elements
Matter Atoms and Elements Chemistry: The study of matter and its changes So, what is matter and what isn t? Matter isn t: Energy in the form of waves-- Light, Electricity, Heat, Magnetic Fields, Sound,
4/14/2013 ATOMIC STRUCTURE THE ATOMIC MODEL
ATOMIC STRUCTURE R E G E N T S C H E M I S T R Y M R S. T I L A R O HISTORY OF THE ATOM O L D A N D M O D E R N A T O M THE ATOMIC MODEL Model of the atom is based on indirect experimental data. Model
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
Atomic Structure Picture
Atomic Structure Picture What do you know about atomic structure already? 1 How did we get the information for our modern atomic structure? 10 minute movie http://www.bozemanscience.com/history of the
STRUCTURE OF MATTER. STEMscopes 8.1
STRUCTURE OF MATTER STEMscopes 8.1 MATTER Matter: Anything that has mass and has volume (takes up space). We know that all substances are made up of particles that are too small to be seen. What are these
Chapter 3 https://youtu.be/thndxfdkzzs?list=pl8dpuualjx tphzzyuwy6fyeax9mqq8ogr
Chapter 3 https://youtu.be/thndxfdkzzs?list=pl8dpuualjx tphzzyuwy6fyeax9mqq8ogr The smallest particle of an element that retains the chemical properties of that element. Regions: Nucleus: very small region
Lesson 6: Periodic Table & Atomic Theory
Lesson 6: Periodic Table & Atomic Theory Do Now 7Hg 10.11.18 In CJ, copy info down from board. Keep CJs out and open on your desk. On Do Now page, copy and answer questions below. 1. Name 4 properties
Atomic Structure. Unit I
Atomic Structure Unit I Atoms are composed of 2 regions: Nucleus: the center of the atom that contains the mass of the atom Electron cloud: Atomic Structure region that surrounds the nucleus that d contains
Warm-up For sulfur: 1. How many valence electrons does it have? 2. What ion does this typically form? 3. Write the electron configuration for the ion.
Warm-up For sulfur: 1. How many valence electrons does it have? 2. What ion does this typically form? 3. Write the electron configuration for the ion. Nucleus Contains 99.9% of the mass of an atom Found
2015 Name: Test 1 Atomic Structure
2015 Name: Test 1 Atomic Structure 1. During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms A) return to lower energy
Structure of the Atom. Intext Exercise 1
What are canal rays? Intext Exercise 1 Canal rays are positively charged radiations. These rays consist of positively charged particles known as protons. They were discovered by Goldstein in 16. If an
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
Lab Overview: In this lab, you will be building atoms and illustrating ionic bonds. You will be using M&M s and paper plates to build your atom.
Name: Date: Period: Discovering Ionic Bonds Activity Lab Overview: In this lab, you will be building atoms and illustrating ionic bonds. You will be using M&M s and paper plates to build your atom. Materials:
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
CHEMISTRY 9 REVIEW & INTRO TO CHEMISTRY 10. Section 4.1: Atomic Theory and Bonding
1 CHEMISTRY 9 REVIEW & INTRO TO CHEMISTRY 10 Section 4.1: Atomic Theory and Bonding ATOMS AND COMPOUNDS An atom is the smallest particle of an element that still has the properties of that element An atom
Biotech 2: Atoms and Molecules OS Text Reading pp Electron cloud Atoms & Nucleus 2e Subatomic Particles Helium Electron cloud
9/4/017 Biotech : Atoms and Molecules OS Text Reading pp. 34-4 Atoms & Subatomic Particles Nucleus Helium e cloud cloud e Protons Neutrons Mass number = 4 s Nucleus Carbon atomic number = # of protons
9/13/2011. The Greek Philosophers. Atomic Structure & The Periodic Table. Dalton s Atomic Theory. J. J. Thomson. Thomson s Experiment
Atomic Structure & The Periodic Table The Greek Philosophers Democritus believed that all matter is made up of tiny particles that could not be divided Aristotle -- thought that matter was made of only
Chapter 18 Atoms and Bonding
Physical Science Chapter 18 Atoms and Bonding Dmitri Mendeleev - 1869 Mendeleev was born in Siberia, Russia in the year 1834. He died in 1907 He was a professor of Chemistry at the St. Petersburg University.
Unit 2: Atomic Structure Practice Packet
Unit 2: Atomic Structure Practice Packet Dalton s Model: hard sphere model 1. I can describe John Dalton s contribution to our Thomson s Experiment: cathode ray experiment 2. I can describe JJ Thomson
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
A. Cu 2+ B. Fe 2+ C. Ca 2+ D. Hg Which atom in the ground state has three halffilled orbitals?
Unit 3 - Electrons, Light, and Ions 15-16 Name: ate: 1. Which is the electron configuration of a neutral atom in the ground state with a total of six valence electrons?. 1s 2 2s 2 2p 2. 1s 2 2s 2 2p 4.
CHAPTER 3 ATOMS ATOMS MATTER 10/17/2016. Matter- Anything that takes up space (volume) and has mass. Atom- basic unit of matter.
CHAPTER 3 MATTER Matter- Anything that takes up space (volume) and has mass. Matter Combining Matter States of Matter Atom- basic unit of matter. Subatomic particles- protons, neutrons, and electrons.
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.
Atomic Structure and The Periodic Table. Unit 3
Atomic Structure and The Periodic Table Unit 3 Lesson 1: Atoms Unit 5: Atomic Structure & The Periodic Table Atoms How small can things get? If you break a stone wall into smaller and smaller pieces, you
Concept 2.1: Matter consists of chemical elements in pure form and in combinations called compounds
Concept 2.1: Matter consists of chemical elements in pure form and in combinations called compounds Organisms are composed of matter Matter is anything that takes up space and has mass The Chemical Context
Atomic Models. A model uses familiar ideas to explain unfamiliar facts observed in nature. A model can be changed as new information is collected.
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. Atomic Models A model uses familiar ideas
Lesson summary. Grammar. Adjetives. Present simple. Passive voice. I think... In my opinion... Firstly... Secondly... Finally... To sum up...
UNIT 3: THE ATOMIC STRUCTURE OF MATTER. Lesson summary Vocabulary Grammar Content Objetives atom. Subatomic particles. Radioactivity Adjetives. Present simple. Passive voice The lesson aims to help students:
Name: Date: Period: Study Guide: 8th grade - Chapter 8 Test, Elements and Chemical Bonds
Name: Date: Period: Study Guide: 8th grade - Chapter 8 Test, Elements and Chemical Bonds 1. Water is a covalent bond because. 2. Ionic bonds have the ability to. 3. When atoms gain or lose electrons, an
Keep protons in the nucleus from repelling each other. Atomic Number Mass Number Atomic Mass number of protons determines identity of atom
Module 1 - The Atom page 1 of 5 A: Matter & Energy Matter The Has, can be weighed, takes up space Made of Energy Makes the stuff do things, like move or glow No mass, doesn t take up space B: Atomic Structure
A. neutrons and electrons B. electrons and protons C. protons and neutrons D. No clue. They don t stay still long enough to get weighed.
Chemistry I: Practice Test: Atomic structure 1: The three basic components of an atom are: A. protons, neutrons, and ions B. protons, neutrons, and electron C. protons, neutrinos, and ions D. protium,
WORKSHEET 1 REVIEW OF GRADE 9 CHEMISTRY
WORKSHEET 1 REVIEW OF GRADE 9 CHEMISTRY PART A: DEFINITIONS/THEORY Matter: is anything that has mass and takes up space. -Matter can be classified according to its composition, ex. a mixture or a pure
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,