An atom refresher Matter
|
|
|
- Holly Hall
- 5 years ago
- Views:
Transcription
1 Elements & Atoms
2 An atom refresher Matter is anything that takes up space and has mass. All matter is made of atoms Atoms are the building blocks of matter, sort of how bricks are the building blocks of houses.
3 An atom refresher An atom has three parts: Proton = positive Neutron = no charge Electron = negative The proton & neutron are found in the center of the atom, a place called the nucleus. The electrons orbit the nucleus. Picture from
4 Atomic Theory Atoms are building blocks of elements Similar atoms in each element Different from atoms of other elements Two or more different atoms bond in simple ratios to form compounds, such H 2 O, CO and Fe 2 O 3 How Small Are Atoms? 4
5 Subatomic Particles Particle Symbol Charge Relative Mass Electron e Proton p Neutron n 0 1 5
6 What are elements? Elements are the alphabet to the language of molecules. To make molecules, you must have elements. Elements are made of atoms. While the atoms may have different weights and organization, they are all built in the same way. Information & picture from Chem4kids at
7 Graphic from
8 More about Elements.. Elements are the building blocks of all matter. The periodic table is a list of all of the elements that can build matter. It s a little like the alphabet of chemistry. The periodic table tells us several things
9 Periodic Table Atomic Number: Number of protons and it is also the number of electrons in an atom of an element. Element s Symbol: An abbreviation for the element. Elements Name Atomic Mass/Weight: Number of protons + neutrons. 8 O Oxygen 16
10 Elements on the Periodic Table Atomic Number Symbol Atomic Mass 11 Na 23 10
11 An Element's Symbol Each element has a unique symbol One or two letters First letter is always capitalized Second letter is always in lower case letters C = carbon Ca = calcium O = oxygen Co = cobalt Fe = iron Zn = zinc 11
12 Atomic Number Counts the number of protons (+) in an atom 12
13 All atoms of an element have the same number of protons Na Na Na Na Na Na Na Na Na Na Every Na (Sodium) atom has 11 protons 13
14 Learning Check Multiple Choice: Use your periodic table to find out how many protons each element has. 1. Nitrogen a) 5 protons b) 7 protons c) 14 protons 2. Sulfur a) 32 protons b) 16 protons c) 6 protons 3. Barium a) 137 protons b) 81 protons c) 56 protons 14
15 Solution The number of protons each element has is: 1. Nitrogen b) 7 protons 2. Sulfur b) 16 protons 3. Barium c) 56 protons 15
16 Mass Number Counts the total number of protons (+) and neutrons (o) in an atom 16
17 Electrons An atom is neutral The overall net charge is zero Number of protons (+) = Number of electrons (-) So, the atomic number tells us the number of protons as well as the number of electrons 17
18 Subatomic Particles in Some Common Atoms O P Zn p + 15 p + 30 p + 8 n 16 n 35 n 8 e - 15 e - 30 e - 18
19 Learning Check Use your periodic table to write the atomic symbols for atoms with the following: A. 8 p +, 8 n, 8 e - B. 29 p +, 35 n, 29 e - C. 47p +, 60 n, 47 e - 19
20 Solution 8 O A. 8 p +, 8 n, 8 e - 16 B. 29p +, 35n, 29e - 29 Cu 64 C. 47p +, 60 n, 47 e - 47 Ag
21 Practice What is the name for the element with the symbol Na? Sodium What is the atomic number of Hydrogen? 1 What is the atomic mass of Nitrogen (N)? **We will talk about the decimals later
22 Practice Cont. What is the chemical symbol for Mercury? Hg What is the atomic number of Plutonium (Pu)? 94 What is the atomic mass of Gold?
23 Atomic Mass Actual atomic mass is the weighted average mass of all the atomic masses of the isotopes of that atom. Some periodic tables round the atomic mass number. Isotopes 23
24 Isotopes There are different versions of elements Atoms have the same number of protons, but different numbers of neutrons. Atoms of the same element (same atomic number) have different mass numbers 2 Isotopes of chlorine 17 Cl 17 Cl chlorine - 35 chlorine
25 Learning Check Naturally occurring carbon consists of three isotopes, 12 C, 13 C, and 14 C. State the number of protons, neutrons, and electrons in each of these carbon atoms. 6 C 6 C 6 C #p #n #e 25
26 Solution 6 C 6 C 6 C #p #n #e
27 Atom Models There are two models of the atoms we will be using in class. Bohr Model Lewis Dot Structure Created by G.Baker
28 Bohr Model The Bohr Model shows all of the particles in the atom. - In the center is circles. Each circle represents a single neutron or proton. Protons should have a plus or P written on them. Neutrons should be blank or have an N In a circle around the nucleus are the electrons. Electrons should have a minus sign or an e. Created by G.Baker
29 Bohr Diagrams A simple way to diagram atoms Protons and Neutrons are found in the nucleus. Electrons are found orbiting in clouds, called energy levels (or shells), around the nucleus. Each level must be full before electrons can move to the next level. First level can hold only 2 electrons. Each level thereafter can hold 8 electrons. This is called the Octet Rule Atoms without a full outer shell are more likely to react with other atoms. 29
30 Practice! Oxygen has N, P and E Draw the nucleus. Add P and N Draw the first energy shell Add electrons to fill the first shell Draw the second energy shell Add the remaining electrons. (note that the second shell is not full yet!) 30
31 The Atom Oxygen 8 Protons 8 Electrons (2 in first energy shell, 6 in outer shell) 8 Neutrons 31
32 Oxygen has: 8 neutrons 8 protons 8 electrons Note that the outer shell is NOT full, that it could hold 2 more. 32
33 More Practice! Diagram a Fluorine Atom 33
34 The Atom Fluorine 9 Protons 9 Electrons (2 in first energy shell, 7 in outer shell) 10 Neutrons 34
35 Fluorine has: 10 neutrons 9 protons 9 electrons Note that the outer shell is NOT full, that it could hold 1 more. 35
36 Once More! Diagram a Neon Atom 36
37 The Atom Neon 10 Protons Electrons (2 in first energy shell, 8 in outer shell) 10 Neutrons 37
38 Neon has: 10 neutrons 10 protons 10 electrons Note that the outer shell is full. This atom will not react with others. 38
39 And Again! Diagram a Sodium Atom 39
40 The Atom Sodium 11 Protons 11 Electrons (2 in first energy shell, 8 in second shell & 1 in outer shell) 12 Neutrons 40
41 Sodium has: 12 neutrons 11 protons 11 electrons Note that the outer shell is NOT full, that it could hold 7 more. 41
42 Electrons have special rules. You can t just shove all of the electrons into the first orbit of an electron. Electrons live in something called shells or energy levels. Only so many can be in any certain shell. Created by G.Baker
43 Nucleus 1 st shell 2 nd shell 3 rd shell Adapted from Created by G.Baker
44 Electrons have special rules. You can t just shove all of the electrons into the first orbit of an electron. Electrons live in something called shells or energy levels. Only so many can be in any certain shell. The electrons in the outer most shell of any element are called valance electrons. Created by G.Baker
45 So let s try it. How to draw a Lithium atom First, look at the Periodic Table Second, determine the number of protons the atomic number) Then determine the number of neutrons (Atomic mass atomic number) Then determine the number of electrons the atomic number) 3 Li Lithium 7 Created by G.Baker
46 So let s try it. Protons = Li Lithium 7 Electrons = 3 2 in the 1 st shell, 1 in the 2 nd shell Neutrons = 4 (7-3=4) Created by G.Baker
47 Lewis Dot Structure The Lewis Dot Structure is a bit different from the Bohr model. It only shows the element symbol and it s outer most electron shell O - Created by G.Baker
48 How to 1. Write the symbol. 2. Start on the right hand side, working your way clockwise around the symbol. 3. Try Lithium Created by G.Baker
49 Your activity Using the beans (Lentils are electrons, Lima Beans are protons, and kidney beans are neutrons), create a Bohr model, and then a Lewis dot structure model of each of the first 20 elements. After you have created each model, draw each model on your chart. Hint to make a chart, use a burrito fold, then fold the top down by 1 ½ inches. Unfold, you now have 3 columns. Label the columns: element, Bohr model, Lewis Dot. Created by G.Baker
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.
Activity # 2. Name. Date due. Assignment on Atomic Structure
Activity # 2 10 Name Date Date due Assignment on Atomic Structure NOTE: This assignment is based on material on the Power Point called Atomic Structure, as well as pages 167-173 in the Science Probe textbook.
Atomic Structure Chapter 4 Mr. Hines
Atomic Structure Chapter 4 Mr. Hines Part A Standard model of the atom Learning Targets and I can statements 1 List, label, and describe the parts of an atom. 2 Identify the atomic number and the atomic
Build An Atom Simulation Build Ions and Isotopes
Build An Atom Simulation Build Ions and Isotopes Introduction: Atoms are the smallest things that make up all matters. Atoms are made of three subatomic particles; protons, neutrons, and electrons. In
UNIT (2) ATOMS AND ELEMENTS
UNIT (2) ATOMS AND ELEMENTS 2.1 Elements An element is a fundamental substance that cannot be broken down by chemical means into simpler substances. Each element is represented by an abbreviation called
Atomic Structure Chapter 4 Mr. Hines
Atomic Structure Chapter 4 Mr. Hines Part A Standard model of the atom Learning Targets and I can statements 1 List, label, and describe the parts of an atom. 2 Identify the atomic number and the atomic
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,
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
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
Part I: Protons, Electrons and Neutrons
Part I: Protons, Electrons and Neutrons In this activity, you will use models and diagrams to explore how electrons fill the area of the atom called the electron cloud. So, what is this electron cloud?
Chemistry. The building blocks of matter Made of protons, neutrons and electrons. Pure substances that cannot be separated.
Chemistry CHEMISTRY NOTES Atom- Element- Compound- Molecule- The building blocks of matter Made of protons, neutrons and electrons. Pure substances that cannot be separated. Ex: Gold 2 or more elements
General Chemistry Notes Name
Bio Honors General Chemistry Notes Name Directions: Carefully read the following information. Look for the ** directions in italics** for prompts where you can do some work. Use the information you have
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
Chapter 2: Atoms and the Periodic Table
1. Which element is a nonmetal? A) K B) Co C) Br D) Al Ans: C Difficulty: Easy 2. Which element is a metal? A) Li B) Si C) Cl D) Ar E) More than one of the elements above are metals. 3. Which element is
Q1. The electronic structure of the atoms of five elements are shown in the figure below.
Q1. The electronic structure of the atoms of five elements are shown in the figure below. The letters are not the symbols of the elements. Choose the element to answer the question. Each element can be
Lewis Dot diagrams. Developing and using models to predict formulas for stable, binary ionic compounds based on balance of charges
Lewis Dot diagrams 1. Developing and using models to predict formulas for stable, binary ionic compounds based on balance of charges 1 Lewis Dot Diagrams Refresher Element symbol is the centerpiece, surrounded
PRACTICE PACKET Basic Chemistry
Honors Biology Name KEY PRACTICE PACKET Basic Chemistry #1 Periodic Table Use the following terms to fill in the blanks for questions 1-8: protons mass number neutrons energy levels nucleus symbol electrons
Unit 4: The Atom, Atomic Number, Mass Number, And Isotopes
#5 PPT APE MAN AND ISOTOPES! Unit 4: The Atom, Atomic Number, Mass Number, And Isotopes LecturePLUS Timberlake 1 Atomic Theory Atoms are building blocks of elements Similar atoms in each element Different
Work hard. Be nice. Name: Period: Date: UNIT 3: Electrons Lesson 4: The Octet Rule. Nitrogen Neon Carbon He
Name: Period: Date: UNIT 3: Electrons Lesson 4: The Octet Rule Do Now: By the end of today, you will have an answer to: What role do valence electrons play in chemical changes? Draw the following lewis
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
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
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
WP Unit 2 Practice: The Atom
WP Unit 2 Practice: The Atom Name 1. Name, and identify them clearly in your answer, one halogen, one noble gas, one alkali metal, one alkali earth metal, one metalloid, one transition metal and finally
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
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
Atoms and Their Isotopes
Atoms and Their Isotopes Why? Atoms and isotopes are identified by the number of protons, neutrons, and electrons that they contain. Before you can understand the properties of atoms, how atoms combine
A pure substance that cannot be broken down into simpler substances Elements are made up of identical atoms
Atoms and Elements Objective: S1-2-03 Define element and identify symbols of some common elements & S1-2-04 Explain the atomic structure of an element in terms of the number of protons, electrons, and
UNIT 2 CHEMISTRY IN ACTION. Mr.Yeung
UNIT 2 CHEMISTRY IN ACTION Mr.Yeung ATOMS REVIEW Check out the Scale of the Universe http://htwins.net/scale2/ Keep the following questions in mind: 1. Are cells bigger or smaller than atoms? 2. Generally
Unit 2 ~ Learning Guide Name:
Unit 2 ~ Learning Guide Name: Instructions: Using a pencil, complete the following notes as you work through the related lessons. Show ALL work as is explained in the lessons. You are required to have
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
CHM 210 Chemistry Homework #2 Atoms and Elements (Ch. 3) Due: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Helium is a(n) A) heterogeneous mixture.
The Particle Theory of Matter
Identifying Elements TEKS: 8.5B - identify that protons determine an element s identity and valence electrons determine its chemical properties, including reactivity. 8.5C interpret the arrangement of
Chapter 4 Atoms Practice Problems
Chapter 4 Atoms Practice Problems 1) The primary substances of which all other things are composed are A) molecules. B) compounds. C) elements. D) electrons. E) protons. 2) Which of the following is a
PART I: ATOM SCREEN Build an Atom simulation ( ) Positive ions have protons than electrons.
PART I: ATOM SCREEN Build an Atom simulation ( http://phet.colorado.edu/en/simulation/build-an-atom ) 1. Explore the Build an Atom simulation with your group. As you explore, talk about what you find.
Name: Period: Date: Find the following elements according to their group and period: Write the excited state electron configuration of Na.
Name: Period: Date: UNIT 3: Electrons Lesson 3: Small particles, big similarities Do Now: By the end of today, you will have an answer to: Why do elements within the same group react similarly? Find the
3. Determine the total charge of an oxygen nucleus: Valence electrons are ELECTRONS on the outer most electron shell (principle energy level).
Name: Period: Date: Hybrid Chemistry Regents Prep Ms. Hart/Mr. Kuhnau UNIT 2: Bonding Lesson 2.1: Ions and Ionic Bonding By the end of today, you will have an answer to: How do metals and non- metals bond
Bohr Models are NOT Boring! How to Draw Bohr Diagrams
Bohr Models are NOT Boring! How to Draw Bohr Diagrams 1) Find the element on the periodic table. 2)Determine the number of electrons--it is the same as the atomic number. 3)This is how many electrons you
a. What is the particle that makes these two elements VERY different from each other? The PROTONS make each element different from one another.
Name: Date: Directions: 1. You need to be sure to go over ALL of the pages in your classwork section; these notes will help you complete this study guide. 2. You should also look back at all of your exit
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.
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
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
ESA Study Guide Year 10 Science
Then and now Questions from pages 26, 27 of ESA Study Guide Year 10 Science 1. Which early scientist thought atoms would combine to form new substances? 2. Which New Zealand scientist found that most of
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
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.
= proton (positive charge) = electron (negative charge) = neutron (no charge) A Z. ,, and are notations that represent isotopes of carbon.
ChemQuest 8 Name: Date: Hour: Information: Structure of the Atom Note the following symbols: (they are not to scale) = proton (positive charge) = electron (negative charge) = neutron (no charge) The following
Ionic Bonding Ionic bonding occurs when metals and nonmetals trade one or more electrons and the resulting opposite charges attract each other. Metals
Chemical Bonding Now that we know what atoms look like A very small (less than 0.001% of the volume) and massive (more than 99.99% of the mass) nucleus with protons (+) and neutrons (neutral) and electrons
AP Biology. Chapter 2
AP Biology Chapter 2 Matter is anything that has weight and takes up space 1. Mass is a measure of how much matter is present in a body 2. Weight is a measure of the gravitational force exerted on an object
Atoms with a complete outer shell do not react with other atoms. The outer shell is called the valence shell. Its electrons are valence electrons.
Bonding and the Outer Shell Use this table for reference: http://www.dreamwv.com/primer/page/s_pertab.html Atoms with incomplete shells react with others in a way that allows it to complete the outer shell.
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 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
1. What is a dot diagram? 2. Drawing dot diagrams. Name:
Name: Skill Sheet 29.2 Dot Diagrams You have learned that atoms are composed of protons, neutrons, electrons. The electrons occupy energy levels that surround the nucleus in the form of an electron cloud.
Unit 6: Chemistry Test 1 Study Guide
Name: Due Date: Unit 6: Chemistry Test 1 Study Guide Date: Test Date: Unit 6 Important Topics: Please review the concepts on this study guide as well as any other notes/worksheets from this unit. I. Aim
Periodic Table of Elements
Periodic Table of Elements chlorine nitrogen helium gold oxygen silver mercury hydrogen neodymium sodium niobium carbon Elements Science has come along way since Aristotle s theory of Air, Water, Fire,
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
UNIT 2: Matter and its changes. Mrs. Turner
UNIT 2: Matter and its changes Mrs. Turner Preassessment Take out a sheet of paper and number it from 1-25. Write down your answers to plug them into your clickers. Don t worry about not knowing an answer
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
EM SPECTRUM, WAVELENGTH, FREQUENCY, AND ENERGY WORKSHEET
EM SPECTRUM, WAVELENGTH, FREQUENCY, AND ENERGY WORKSHEET 1.) Look at the EM spectrum below to answer this question. As you move across the visible light spectrum from red to violet (A) Does the wavelength
Periodic Table Workbook
Key Ideas: The placement or location of elements on the Periodic Table gives an indication of physical and chemical properties of that element. The elements on the Periodic Table are arranged in order
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
OBJECTIVES: By the end of class, students will be able to. SWBAT find the number of shells and number of valence electrons for the different elements.
7 th Grade Science Name: Unit: Matter and Periodic Table Lesson: Atoms 4 Valance Elections I OBJECTIVES: By the end of class, students will be able to SWBAT find the number of shells and number of valence
VIII. Progression of the atomic model Democritus/Dalton --> Thomson --> Rutherford --> Bohr --> Quantum Mechanical
HISTORY OF ATOMIC THEORY NOTES I. Ancient Greeks A. Aristotle ~ believed there were 4 elements: B. Democritus ~ believed in the "particle theory": ~ named the small particles "atoms" which means II. Dalton
Part I. Multiple choice. Circle the correct answer for each problem. 3 points each
CEM 100 Name Exam 1 Summer 2011 Part I. Multiple choice. Circle the correct answer for each problem. 3 points each 1. Which symbols represent elements that are metals? a. X and Z b. X and Q c. P and L
Quarter 1 Section 1.2
Quarter 1 Section 1.2 Opening Activity: Use your periodic table 1. How many protons are in an atom of Carbon? 2. How many electrons are in an atom of Carbon? 3. How many neutrons are in an atom of Carbon?
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
Name: Period: CHEMISTRY I HONORS SEMESTER 1 EXAM REVIEW
Name: Period: CHEMISTRY I HONORS SEMESTER 1 EXAM REVIEW Unit 1: Nature of Science What rules must be obeyed to safely conduct an experiment? What are the components of a good scientific experiment? What
Part I. Multiple choice. Circle the correct answer for each problem. 3 points each
CEM 100 Name Exam 1 Summer 2010 Part I. Multiple choice. Circle the correct answer for each problem. 3 points each 1. The observation that 20 g of hydrogen gas always combines with 160 g of oxygen gas
Regents review Atomic & periodic
2011-2012 1. The diagram below represents the nucleus of an atom. What are the atomic number and mass number of this atom? A) The atomic number is 9 and the mass number is 19. B) The atomic number is 9
Unit 3 Atomic Structure
Name: Unit 3 Atomic Structure Scientist Year Contribution and/ or Experimental Work Democritus Aristotle Alchemists Boyle Franklin Dalton Avogadro Mendeleev Moseley 1 Scientist Year Contribution and/ or
What is this? Electrons: charge, mass? Atom. Negative charge(-), mass = 0. The basic unit of matter. Made of subatomic particles:
Chemical Bonds What is this? Atom The basic unit of matter. Electrons: charge, mass? Negative charge(-), mass = 0 Made of subatomic particles: Protons: charge, mass? Positive charge (+), mass = 1 Neutrons:
Year 8 Chemistry Knowledge Organiser Topic 1: Periodic Table
KPI 1.1: Identify, with reasons, differences between atoms, elements and compounds Key Terms Element Mixture Compound Elements Definitions A substance that contains only one type of atom A substance that
Which order of statements represents the historical development of the atomic model? A) C D A B B) C D B A C) D B A C D) D B C A
1. The mass of a proton is approximately equal to the mass of A) an electron B) a neutron C) an alpha particle D) a beta particle 2. What is the number of electrons in an atom that has 20 protons and 17
Chapter 9: Elements are the Building blocks of Life
Chapter 9: Elements are the Building blocks of Life Section 9.1- Elements and the Periodic Table Keep Scale in mind Animation: http://htwins.net/scale2/ I. ELEMENTS All matter is made up of one or more
CHEMISTRY OF LIFE. Composition of Matter. Composition of Matter 10/3/14
CHEMISTRY OF LIFE Matter- occupies space and has mass Mass- the quantity of matter an object has Weight- the quantity of matter multiplied by the gravity of the planet you are on. Earth s gravity is 9.8
Atomic Structure and the Periodic Table
Structure and the Structure Atoms are made of three particles: 1. Protons = positive 2. Neutrons = neutral 3. Electrons = negative The protons and neutrons are in the center of the atom (the nucleus) Electrons
2. Atoms with nearly empty valence shells give up electrons. They are called
Name: Date: Chemistry ~ Ms. Hart Class: Anions or Cations 4.8 Ions and Ionic Radius Directions: As we watch the video, answer these questions. 1. What is it called when an atom gains or loses an electron?
Atoms and Elements Review KEY
Atoms and Elements Review KEY YOU ARE EXPECTED TO KNOW THE MEANING OF ALL THE FOLLOWING TERMS: ELEMENT ATOM WHMIS HHPS SDS PURE MIXTURE COMPOUND MOLECULE DIATOMIC HETEROGENEOUS HOMOGENEOUS METALS NON-METALS
Chemistry Test 1 Study Guide
Name: Date: Chemistry Test 1 Study Guide Due Date: Test Date: Important Topics: Please review the concepts on this study guide as well as any other notes/worksheets from this unit. I. Aim # 22 Chemistry-
How can there be different varieties of atoms?
Chapter 4 Atomic Structure 4.1 Defining the Atom 4.2 Structure of the Nuclear Atom 4.3 Distinguishing Among Atoms 1 Copyright Pearson Education, Inc., or its affiliates. All Rights Reserved. CHEMISTRY
Determine Chemical Behavior
Fun with the Periodic Table Activity 7 CHEM POETRY A sodium atom walks onto the scene, His valence electron s feeling keen, Positive that he will ionically bond With a halogen of whom he is fond. How Electrons
Ch. 3 Answer Key. O can be broken down to form two atoms of H and 1 atom of O. Hydrogen and oxygen are elements.
Ch. 3 Answer Key 1. The Greeks believed that all matter is made of elements. We currently believe the same thing. However, the Greeks believed that there were 4 elements: earth, water, air and fire. Instead,
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
KWL CHART--ELECTRONS
KWL CHART--ELECTRONS WHAT DO I ALREADY KNOW ABOUT ELECTRONS? WHAT DO I WANT TO KNOW CONCERNING ELECTRONS? WHAT HAVE I LEARNED TODAY ABOUT ELECTRONS? GPS STANDARD SC3. Students will use the modern atomic
Period: Chemistry Semester 1 Final Exam Review Packet. 1. What is the difference between a hypothesis and a theory?
Chemistry Name: Period: Chemistry Semester 1 Final Exam Review Packet 1. What is the difference between a hypothesis and a theory? 2. Distinguish between quantitative and qualitative observations. States
Atomic and Mass Numbers
Chapter 2 Lesson 2 Atomic and Mass Numbers Attendance link: http://goo.gl/forms/nlm3hxbdlw 1 Expectations Required Class Connects Tuesday, Wednesday, Thursday 10:30 11:30 am Be active and participate in
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
Unit 3: Atoms and Periodic Table Retake Review Packet
Name Date Block Unit 3: Atoms and Periodic Table Retake Review Packet Completing each section of the retake review packet will fulfill one of the requirements for retaking the unit 3 test. Section 1: Vocabulary
Chemistry 1. Worksheet 9. Atomic Number, Mass Number, and Isotopes of Elements. 1 MathTutorDVD.com
Chemistry 1 Worksheet 9 Atomic Number, Mass Number, and Isotopes of Elements 1 You will need a periodic table to complete this worksheet. 1. Label the subatomic particles below with the appropriate charge.
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
Teacher Workbooks. Science and Nature Series. Atomic Structure, Electron Configuration, Classifying Matter and Nuclear Chemistry, Vol.
Teacher Workbooks Science and Nature Series Atomic Structure, Electron Configuration, Classifying Matter and Nuclear Chemistry, Vol. 1 Copyright 23 Teachnology Publishing Company A Division of Teachnology,
CHEMISTRY REVIEW REVIEW WORKSHEET
The student should be able to: 1. Describe the classification of matter. 2. Describe the conservation of mass. 3. Identify products and reactions in a chemical equation. 4. Describe the structure of an
Name: Chemistry Unit Review Science 9
Name: Chemistry Unit Review Science 9 Do not forget to study for notes, assignments and quizzes! 1. Classify each of the following as a physical or a chemical change. a) Garbage rotting d) Digesting food
Scientist used to believe that matter was made up of four elements (air, earth, fire and water).
Scientist used to believe that matter was made up of four elements (air, earth, fire and water). We now know that all matter in the universe is made of slightly more than 100 different substances called
Part I: Structure of Matter
Part I: Structure of Matter What is Matter? Matter is anything with mass and volume (occupies space). Matter is composed of atoms. Note: Atoms are different from cells. Cells are the basic unit of all
An atom is the smallest particle of an element which still retains the properties of that element
Chemistry: 4.The Atom (and introduction to the periodic table) Please remember to photocopy 4 pages onto one sheet by going A3 A4 and using back to back on the photocopier Syllabus OC39 Describe the structure
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.
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)
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
Atomic Structure. Atomic Notation. Atomic Notation. Atomic Notation. Section 3.3 Distinguishing Between Atoms. Atomic Notation
Atomic Structure Section 3.3 Distinguishing Between Atoms OBJECTIVES: Explain how the atomic number identifies an element. Use the atomic number and mass number of an element to find the numbers of protons,
Chapter 2 Notes The Chemistry of Life
Name: Chapter 2 Notes The Chemistry of Life Section 2-1 The Nature of Matter Date: Atoms (p. 35) The study of chemistry begins with the basic unit of matter, the. Comes from the Greek word atomos, meaning
Q1. The electronic structure of the atoms of five elements are shown in the figure below.
Q. The electronic structure of the atoms of five elements are shown in the figure below. The letters are not the symbols of the elements. Choose the element to answer the question. Each element can be
CP/Honors Chemistry Unit 3: Atomic Theory Chapter 4, Sections 1, 2, and 3
CP/Honors Chemistry Unit 3: Atomic Theory Chapter 4, Sections 1, 2, and 3 Subatomic Particles Warm-Up Quiz 1. What are the three subatomic particles? 2. Where are the particles located in the atom? 3.