Annotation In this activity, students will calculate average atomic mass using the fictional element legumium.
|
|
|
- Clarence Jordan
- 7 years ago
- Views:
Transcription
1 BAG O ISOTOPES Written by Amy Rowley and Jeremy Peacock Annotation In this activity, students will calculate average atomic mass using the fictional element legumium. Primary Learning Outcomes: Students will be able to define the terms isotope and average atomic mass. Students will be able to use correctly isotope notation to represent an isotope. Students will be able to calculate the average atomic mass of an element given data from a representative sample of different isotopes and their atomic masses. Georgia Performance Standards: Characteristics of Science SCSh4. Students will use tools and instruments for observing, measuring, and manipulating scientific equipment and materials. SCSh5. Students will demonstrate the computation and estimation skills necessary for analyzing data and developing reasonable scientific explanations. Physical Science Content SPS1. Students will investigate our current understanding of the atom. Chemistry Content SC3. Students will use the modern atomic theory to explain the characteristics of atoms. Duration: Preparation: 60 minutes Introduction: 10 minutes Student Assignment: 30 minutes Conclusion: 5 minutes Total Class Time: 45 minutes Materials and Equipment: For Teacher Preparation: 1. 1-lb. Bag of large lima beans 2. 1-lb. Bag of baby lima beans 3. 1-lb. Bag of navy beans 4. Snack size plastic zipper bags (1 per group)
2 Per Group: 1. 1 Bag O Isotopes Safety: There are no significant safety concerns associated with this activity. Technology Connection: Not applicable. Procedures: Teacher Preparation: For each group, prepare a Bag O Isotopes containing 8 large lima beans, 11 baby lima beans, and 15 navy beans. Introduction: Isotopes are different versions of atoms having the same number of protons but different numbers of neutrons. These different versions vary in mass but are all atoms of the same element because they each have the same number of protons. Often one isotope of an element is more common than the others. Hydrogen provides an example for discussion of isotopes. The three isotopes of hydrogen (i.e. protium, deuterium, and tritium) all share similar chemical properties because each one is made of one proton and one electron. Protium, the most common isotope of hydrogen, contains only a proton in its nucleus. Deuterium, the second-most common isotope, contains one proton and one neutron in its nucleus. Tritium, an unstable and uncommon isotope, contains one proton and two neutrons in its nucleus. Isotopes are represented by including the mass number and atomic number along with the chemical symbol for the element. For example, tritium would be represented as: where 3 is the mass number and 1 is the atomic number. The number of neutrons can then be calculated by subtracting the atomic number (i.e. the number of protons in the atom) from the mass number (i.e. the combined number of protons and neutrons). In this example, 3-1 = 2 neutrons. The atomic mass listed for an element in the periodic table is an average atomic mass for all of the isotopes of the element as they are found in nature. The average atomic mass is a weighted average, so the more commonly found isotopes have a greater effect on the average than rare isotopes. In this activity students will calculate the average atomic mass of the newly discovered element legumium (Lg). The three isotopes of legumium are represented by the three types of beans found in each Bag O Isotopes. Student Assignment: 3 H 1
3 Students should follow directions outlined in the attached Bag O Isotopes student handout. Conclusion: Collect Bag O Isotopes student handouts and review sample calculation(s). Answer any questions. Assessment: Assessment should be based on completion of the Bag O Isotopes student handout.
4 BAG O ISOTOPES Student Handout Introduction: Scientists have recently discovered the element legumium (Lg). Your assignment is to calculate the average atomic mass of legumium based on the samples provided. The atomic number of legumium is 4. The smallest of the isotopes, Lg-4, has an atomic mass of 4 atomic mass units (amu). Lg-5, the intermediate isotope, has an atomic mass of 5 amu. The largest isotope, Lg-6, has an atomic mass of 6 amu. Terms: are different versions of atoms having the same number of but different numbers of. The is a weighted average of all of the isotopes of an element as they are found in nature. Isotope notation includes,, and. Purpose: To calculate the average atomic mass of the newly discovered element, legumium (Lg). Materials: Per Group or Individual: 1. 1 Bag O Isotopes Procedure: 1. Count and record in the data table the total number of isotopes in the sample. 2. Count and record in the data table the number of each legumium isotope. 3. Record the masses (provided in the introduction) of each legumium isotope in the data table. 4. Calculate the average atomic mass of legumium using the following equation. Average Atomic = (# Isotope 1)(Mass Isotope 1)+ (# Isotope 2)(Mass Isotope 2)+(# Isotope 3)(Mass Isotope 3) Mass # Isotopes 1 + # Isotopes 2 + # Isotopes 3
5 Data and Calculations: Data Table Isotope Quantity Mass (amu) Total Mass (amu) Total Mass of Legumium Isotopes in Sample: Total Number of Legumium Isotopes in Sample: Average Atomic Mass of Legumium: Discussion Questions: 1. For each legumium isotope, give the proper isotope notation. 2. Calculate the number of neutrons in each legumium isotope. 3. According to the sample, which legumium isotope is most abundant in nature? 4. If additional legumium-6 isotopes were added to the sample, how would the average atomic mass of legumium be affected?
Chapter Five: Atomic Theory and Structure
Chapter Five: Atomic Theory and Structure Evolution of Atomic Theory The ancient Greek scientist Democritus is often credited with developing the idea of the atom Democritus proposed that matter was, on
2 The Structure of Atoms
CHAPTER 4 2 The Structure of Atoms SECTION Atoms KEY IDEAS As you read this section, keep these questions in mind: What do atoms of the same element have in common? What are isotopes? How is an element
Students will be able to identify popping corn as a physical change.
TO POP OR NOT TO POP THAT IS THE QUESTION. Written by Amy Rowley and Jeremy Peacock Annotation In this laboratory exercise, students will demonstrate science process skills as they use moisture content
Atomic Calculations. 2.1 Composition of the Atom. number of protons + number of neutrons = mass number
2.1 Composition of the Atom Atomic Calculations number of protons + number of neutrons = mass number number of neutrons = mass number - number of protons number of protons = number of electrons IF positive
PROTONS, NEUTRONS, ELECTRONS
PROTONS, NEUTRONS, ELECTRONS NAME DATE PERIOD SC.A.2.3.2.7.3 determines the mass number and atomic number of an atom from the number of protons and neutrons MA.A.3.3.3.7.1 solves multi-step real-world
Matter. Atomic weight, Molecular weight and Mole
Matter Atomic weight, Molecular weight and Mole Atomic Mass Unit Chemists of the nineteenth century realized that, in order to measure the mass of an atomic particle, it was useless to use the standard
Instructors Guide: Atoms and Their Isotopes
Instructors Guide: Atoms and Their Isotopes Standards Connections Connections to NSTA Standards for Science Teacher Preparation C.3.a.1 Fundamental structures of atoms and molecules. C.3.b.27 Applications
ATOMS A T O M S, I S O T O P E S, A N D I O N S. The Academic Support Center @ Daytona State College (Science 120, Page 1 of 39)
ATOMS A T O M S, I S O T O P E S, A N D I O N S The Academic Support Center @ Daytona State College (Science 120, Page 1 of 39) THE ATOM All elements listed on the periodic table are made up of atoms.
Objectives. PAM1014 Introduction to Radiation Physics. Constituents of Atoms. Atoms. Atoms. Atoms. Basic Atomic Theory
PAM1014 Introduction to Radiation Physics Basic Atomic Theory Objectives Introduce and Molecules The periodic Table Electronic Energy Levels Atomic excitation & de-excitation Ionisation Molecules Constituents
SCH 3UI Unit 2 Outline Up to Quiz #1 Atomic Theory and the Periodic Table
Lesson Topics Covered SCH 3UI Unit 2 Outline Up to Quiz #1 Atomic Theory and the Periodic Table 1 Note: History of Atomic Theory progression of understanding of composition of matter; ancient Greeks and
Chapter 4, Lesson 2: The Periodic Table
Chapter 4, Lesson 2: The Periodic Table Key Concepts The periodic table is a chart containing information about the atoms that make up all matter. An element is a substance made up of only one type of
About the course GENERAL CHEMISTRY. Recommended literature: Chemistry: science of the matter. Responsible for the course: Dr.
About the course GENERAL CHEMISTRY University of Pécs Medical School Academic year 2009-2010. Responsible for the course: Dr. Attila AGÓCS Optional course for 2 credit points. To have grade at the and
100 cm 1 m. = 614 cm. 6.14 m. 2.54 cm. 1 m 1 in. 1 m. 2.54 cm 1ft. 1 in = 242 in. 614 cm. 242 in 1 ft. 1 in. 100 cm = 123 m
Units and Unit Conversions 6. Define the problem: If the nucleus were scaled to a diameter of 4 cm, determine the diameter of the atom. Develop a plan: Find the accepted relationship between the size of
List the 3 main types of subatomic particles and indicate the mass and electrical charge of each.
Basic Chemistry Why do we study chemistry in a biology course? All living organisms are composed of chemicals. To understand life, we must understand the structure, function, and properties of the chemicals
2 ATOMIC SYSTEMATICS AND NUCLEAR STRUCTURE
2 ATOMIC SYSTEMATICS AND NUCLEAR STRUCTURE In this chapter the principles and systematics of atomic and nuclear physics are summarised briefly, in order to introduce the existence and characteristics of
Atomic Theory Part 1
Atomic Theory Part 1 Reading: Ch 2 sections 1 6, 8 Homework: Chapter 2: 39, 47, 43, 49, 51*, 53, 55, 57, 71, 73, 77, 99, 103 (optional) * = important homework question The Atomic Theory (John Dalton, 1803)
Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Introduction to Chemistry Exam 2 Practice Problems 1 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1.Atoms consist principally of what three
Atoms and Elements. Outline Atoms Orbitals and Energy Levels Periodic Properties Homework
Atoms and the Periodic Table The very hot early universe was a plasma with cationic nuclei separated from negatively charged electrons. Plasmas exist today where the energy of the particles is very high,
Atomic Structure Chapter 5 Assignment & Problem Set
Atomic Structure Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. Atomic Structure 2 Study Guide: Things You Must Know Vocabulary (know the definition
Introduction to Chemistry
1 Copyright ç 1996 Richard Hochstim. All rights reserved. Terms of use. Introduction to Chemistry In Chemistry the word weight is commonly used in place of the more proper term mass. 1.1 Atoms, Ions, and
Properties of Atoms and the Periodic Table
Properties of Atoms and the Periodic Table Section 3 The Periodic Table Skim Section 3 and write three questions based on your brief preview. 1. Accept all reasonable answers. How are the elements organized
NOTES ON The Structure of the Atom
NOTES ON The Structure of the Atom Chemistry is the study of matter and its properties. Those properties can be explained by examining the atoms that compose the matter. An atom is the smallest particle
One Stop Shop For Teachers
Physical Science Curriculum The Georgia Performance Standards are designed to provide students with the knowledge and skills for proficiency in science. The Project 2061 s Benchmarks for Science Literacy
ATOMS AND THE PERIODIC TABLE CHAPTER 3 PHYSICAL SCIENCE
ATOMS AND THE PERIODIC TABLE CHAPTER 3 PHYSICAL SCIENCE Chapter 3 Vocabulary Words (27 words) Nucleus Atomic number Proton Mass number Neutron Isotopes Electron Atomic mass unit (amu) Energy level Average
Chemistry CP Unit 2 Atomic Structure and Electron Configuration. Learning Targets (Your exam at the end of Unit 2 will assess the following:)
Chemistry CP Unit 2 Atomic Structure and Electron Learning Targets (Your exam at the end of Unit 2 will assess the following:) 2. Atomic Structure and Electron 2-1. Give the one main contribution to the
Chemistry - Elements Electron Configurations The Periodic Table. Ron Robertson
Chemistry - Elements Electron Configurations The Periodic Table Ron Robertson History of Chemistry Before 16 th Century Alchemy Attempts (scientific or otherwise) to change cheap metals into gold no real
EARLY ATOMIC THEORY AND STRUCTURE
CHAPTER 5 EARLY ATOMIC THEORY AND STRUCTURE SOLUTIONS TO REVIEW QUESTIONS 1. Elements are composed of indivisable particles called atoms. Atoms of the same element have the same properties; atoms of different
2014 Spring CHEM101 Ch1-2 Review Worksheet Modified by Dr. Cheng-Yu Lai,
Ch1 1) Which of the following underlined items is not an intensive property? A) A chemical reaction requires 3.00 g of oxygen. B) The density of helium at 25 C is 1.64 10-4 g/cm3. C) The melting point
Determining Average Atomic Mass
Chemistry Date: Name: Lab Table: 03.03c Determining Average Atomic Mass Lab Partner(s): Background Determining the average mass of an element uses the same method as determining the weighted average of
Chapter NP-1. Nuclear Physics. Atomic Nature of Matter TABLE OF CONTENTS INTRODUCTION OBJECTIVES 1.0 PROPERTIES OF SUBSTANCES
Chapter NP-1 Nuclear Physics Atomic Nature of Matter TABLE OF CONTENTS INTRODUCTION OBJECTIVES 1.0 PROPERTIES OF SUBSTANCES 1.1 CHEMICAL AND PHYSICAL PROPERTIES 2.0 COMPOSITION OF ATOMS 2.1 ATOMIC STRUCTURE
Department of Physics and Geology The Elements and the Periodic Table
Department of Physics and Geology The Elements and the Periodic Table Physical Science 1422 Equipment Needed Qty Periodic Table 1 Part 1: Background In 1869 a Russian chemistry professor named Dmitri Mendeleev
9/13/2013. However, Dalton thought that an atom was just a tiny sphere with no internal parts. This is sometimes referred to as the cannonball model.
John Dalton was an English scientist who lived in the early 1800s. Dalton s atomic theory served as a model for how matter worked. The principles of Dalton s atomic theory are: 1. Elements are made of
PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes.
1 PERIODIC TABLE OF GROUPS OF ELEMENTS Elements can be classified using two different schemes. Metal Nonmetal Scheme (based on physical properties) Metals - most elements are metals - elements on left
******* KEY ******* Atomic Structure & Periodic Table Test Study Guide
Atomic Structure & Periodic Table Test Study Guide VOCABULARY: Write a brief definition of each term in the space provided. 1. Atoms: smallest unit of an element that has all of the properties of that
( + and - ) ( - and - ) ( + and + ) Atoms are mostly empty space. = the # of protons in the nucleus. = the # of protons in the nucleus
Atoms are mostly empty space Atomic Structure Two regions of every atom: Nucleus - is made of protons and neutrons - is small and dense Electron cloud -is a region where you might find an electron -is
18.2 Comparing Atoms. Atomic number. Chapter 18
As you know, some substances are made up of only one kind of atom and these substances are called elements. You already know something about a number of elements you ve heard of hydrogen, helium, silver,
Elements in the periodic table are indicated by SYMBOLS. To the left of the symbol we find the atomic mass (A) at the upper corner, and the atomic num
. ATOMIC STRUCTURE FUNDAMENTALS LEARNING OBJECTIVES To review the basics concepts of atomic structure that have direct relevance to the fundamental concepts of organic chemistry. This material is essential
F321 THE STRUCTURE OF ATOMS. ATOMS Atoms consist of a number of fundamental particles, the most important are... in the nucleus of an atom
Atomic Structure F32 TE STRUCTURE OF ATOMS ATOMS Atoms consist of a number of fundamental particles, the most important are... Mass / kg Charge / C Relative mass Relative Charge PROTON NEUTRON ELECTRON
Atomic structure. Resources and methods for learning about these subjects (list a few here, in preparation for your research):
Atomic structure This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
Chemical Building Blocks: Chapter 3: Elements and Periodic Table
Name: Class: Date: Chemical Building Blocks: Chapter 3: Elements and Periodic Table Study Guide Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Honors Chemistry: Unit 6 Test Stoichiometry PRACTICE TEST ANSWER KEY Page 1. A chemical equation. (C-4.4)
Honors Chemistry: Unit 6 Test Stoichiometry PRACTICE TEST ANSWER KEY Page 1 1. 2. 3. 4. 5. 6. Question What is a symbolic representation of a chemical reaction? What 3 things (values) is a mole of a chemical
Objectives 404 CHAPTER 9 RADIATION
Objectives Explain the difference between isotopes of the same element. Describe the force that holds nucleons together. Explain the relationship between mass and energy according to Einstein s theory
The Mole Concept. The Mole. Masses of molecules
The Mole Concept Ron Robertson r2 c:\files\courses\1110-20\2010 final slides for web\mole concept.docx The Mole The mole is a unit of measurement equal to 6.022 x 10 23 things (to 4 sf) just like there
An Atom Apart by Leslie Cargile
Have you ever walked through a cloud of gnats on a hot summer, only to have them follow you? No matter how you swat at them, or even if you run, they won t leave you alone. If so, then you have something
Chemical Calculations: The Mole Concept and Chemical Formulas. AW Atomic weight (mass of the atom of an element) was determined by relative weights.
1 Introduction to Chemistry Atomic Weights (Definitions) Chemical Calculations: The Mole Concept and Chemical Formulas AW Atomic weight (mass of the atom of an element) was determined by relative weights.
Unit 1 Practice Test. Matching
Unit 1 Practice Test Matching Match each item with the correct statement below. a. proton d. electron b. nucleus e. neutron c. atom 1. the smallest particle of an element that retains the properties of
Chapter 2 The Chemical Context of Life
Chapter 2 The Chemical Context of Life Multiple-Choice Questions 1) About 25 of the 92 natural elements are known to be essential to life. Which four of these 25 elements make up approximately 96% of living
6.7: Explaining the Periodic Table pg. 234
Unit C: Atoms, elements, and Compounds 6.7: Explaining the Periodic Table pg. 234 Key Concepts: 3. Elements are organized according to their atomic number and electron arrangement on the periodic table.
CHEM 101/105 Numbers and mass / Counting and weighing Lect-03
CHEM 101/105 Numbers and mass / Counting and weighing Lect-03 Interpretation of Elemental Chemical Symbols, Chemical Formulas, and Chemical Equations Interpretation of an element's chemical symbol depends
Homework #10 (749508)
Homework #10 (749508) Current Score: 0 out of 100 Description Homework on quantum physics and radioactivity Instructions Answer all the questions as best you can. 1. Hewitt10 32.E.001. [481697] 0/5 points
ANSWER KEY : BUILD AN ATOM PART I: ATOM SCREEN Build an Atom simulation ( http://phet.colorado.edu/en/simulation/build an atom )
ANSWER KEY : 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
3 CHEMICAL FOUNDATIONS: ELEMENTS, ATOMS AND IONS
3 CHEMICAL FOUNDATIONS: ELEMENTS, ATOMS AND IONS All matter is built up from chemical combinations of elements. As of 2003, there are 114 known elements, of which 88 are naturally occurring; the remaining
Main properties of atoms and nucleus
Main properties of atoms and nucleus. Atom Structure.... Structure of Nuclei... 3. Definition of Isotopes... 4. Energy Characteristics of Nuclei... 5. Laws of Radioactive Nuclei Transformation... 3. Atom
Georgia Department of Education
Epidemiology Curriculum The Georgia Performance Standards are designed to provide students with the knowledge and skills for proficiency in science. The Project 2061 s Benchmarks for Science Literacy is
Elements and Atoms: The Building Blocks of Matter
OpenStax-CNX module: m45998 1 Elements and Atoms: The Building Blocks of Matter OpenStax College This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 By
Atomic Masses. Chapter 3. Stoichiometry. Chemical Stoichiometry. Mass and Moles of a Substance. Average Atomic Mass
Atomic Masses Chapter 3 Stoichiometry 1 atomic mass unit (amu) = 1/12 of the mass of a 12 C atom so one 12 C atom has a mass of 12 amu (exact number). From mass spectrometry: 13 C/ 12 C = 1.0836129 amu
Untitled Document. 1. Which of the following best describes an atom? 4. Which statement best describes the density of an atom s nucleus?
Name: Date: 1. Which of the following best describes an atom? A. protons and electrons grouped together in a random pattern B. protons and electrons grouped together in an alternating pattern C. a core
1. In the general symbol cleus, which of the three letters. 2. What is the mass number of an alpha particle?
1. In the general symbol cleus, which of the three letters Z A X for a nu represents the atomic number? 2. What is the mass number of an alpha particle? 3. What is the mass number of a beta particle? 4.
Unit 3 Study Guide: Electron Configuration & The Periodic Table
Name: Teacher s Name: Class: Block: Date: Unit 3 Study Guide: Electron Configuration & The Periodic Table 1. For each of the following elements, state whether the element is radioactive, synthetic or both.
Chemistry Diagnostic Questions
Chemistry Diagnostic Questions Answer these 40 multiple choice questions and then check your answers, located at the end of this document. If you correctly answered less than 25 questions, you need to
Name: Worksheet: Electron Configurations. I Heart Chemistry!
1. Which electron configuration represents an atom in an excited state? 1s 2 2s 2 2p 6 3p 1 1s 2 2s 2 2p 6 3s 2 3p 2 1s 2 2s 2 2p 6 3s 2 3p 1 1s 2 2s 2 2p 6 3s 2 Worksheet: Electron Configurations Name:
Chemistry. The student will be able to identify and apply basic safety procedures and identify basic equipment.
Chemistry UNIT I: Introduction to Chemistry The student will be able to describe what chemistry is and its scope. a. Define chemistry. b. Explain that chemistry overlaps many other areas of science. The
3 Atomic Structure 15
3 Atomic Structure 15 3.1 Atoms You need to be familiar with the terms in italics The diameter of the nucleus is approximately 10-15 m and an atom 10-10 m. All matter consists of atoms. An atom can be
Test Bank - Chapter 4 Multiple Choice
Test Bank - Chapter 4 The questions in the test bank cover the concepts from the lessons in Chapter 4. Select questions from any of the categories that match the content you covered with students. The
CHEM 1411 Chapter 5 Homework Answers
1 CHEM 1411 Chapter 5 Homework Answers 1. Which statement regarding the gold foil experiment is false? (a) It was performed by Rutherford and his research group early in the 20 th century. (b) Most of
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
Atoms and Molecules. Preparation. Objectives. Standards. Materials. Grade Level: 5-8 Group Size: 20-30 Time: 60 90 Minutes Presenters: 2-4
Atoms and Molecules Preparation Grade Level: 5-8 Group Size: 20-30 Time: 60 90 Minutes Presenters: 2-4 Objectives This lesson will enable students to: Describe how atoms are the building blocks of matter
The Mole. 6.022 x 10 23
The Mole 6.022 x 10 23 Background: atomic masses Look at the atomic masses on the periodic table. What do these represent? E.g. the atomic mass of Carbon is 12.01 (atomic # is 6) We know there are 6 protons
EXPERIMENT 4 The Periodic Table - Atoms and Elements
EXPERIMENT 4 The Periodic Table - Atoms and Elements INTRODUCTION Primary substances, called elements, build all the materials around you. There are more than 109 different elements known today. The elements
Level 3 Achievement Scale
Unit 1: Atoms Level 3 Achievement Scale Can state the key results of the experiments associated with Dalton, Rutherford, Thomson, Chadwick, and Bohr and what this lead each to conclude. Can explain that
Physics 1104 Midterm 2 Review: Solutions
Physics 114 Midterm 2 Review: Solutions These review sheets cover only selected topics from the chemical and nuclear energy chapters and are not meant to be a comprehensive review. Topics covered in these
For convenience, we may consider an atom in two parts: the nucleus and the electrons.
Atomic structure A. Introduction: In 1808, an English scientist called John Dalton proposed an atomic theory based on experimental findings. (1) Elements are made of extremely small particles called atoms.
Unit 2 Atomic Structure
Unit 2 Atomic Structure Big Idea: Atomic structure explains patterns in the behavior of elements and allows us to predict the chemical and physical behavior of a given element. The organization of elements
Atomic Structure OBJECTIVES SCHEDULE PREPARATION VOCABULARY MATERIALS. For each team of four. The students. For the class.
activity 4 Atomic Structure OBJECTIVES Students are introduced to the structure of the atom and the nature of subatomic particles. The students are introduced to the properties of protons, neutrons, and
22.1 Nuclear Reactions
In the Middle Ages, individuals called alchemists spent a lot of time trying to make gold. Often, they fooled people into believing that they had made gold. Although alchemists never succeeded in making
CHAPTER 8: CHEMICAL COMPOSITION
CHAPTER 8: CHEMICAL COMPOSITION Active Learning: 1-4, 6-8, 12, 18-25; End-of-Chapter Problems: 3-4, 9-82, 84-85, 87-92, 94-104, 107-109, 111, 113, 119, 125-126 8.2 ATOMIC MASSES: COUNTING ATOMS BY WEIGHING
STUDY GUIDE AGRICULTURAL SCIENCES GRADE 11
STUDY GUIDE AGRICULTURAL SCIENCES GRADE 11 A publication of Impak Onderwysdiens (Pty) Ltd Copyright reserved. Apart from any fair dealing for the purpose of research, criticism or review as permitted under
Section 1: Arranging the Elements Pages 106-112
Study Guide Chapter 5 Periodic Table Section 1: Arranging the Elements Pages 106-112 DISCOVERING A PATTERN 1. How did Mendeleev arrange the elements? a. by increasing density b. by increasing melting point
POGIL Lesson Plan. Author: Sui Sum Olson. Title: Understanding the Mole and Molar Mass Concepts
POGIL Lesson Plan Author: Sui Sum Olson Title: Understanding the Mole and Molar Mass Concepts Subject Area(s): Chemistry 1, Honors Chemistry 1 Grades: 10 Description of Lesson: The Mole concept is fundamental
Chapter 2 Atoms, Ions, and the Periodic Table
Chapter 2 Atoms, Ions, and the Periodic Table 2.1 (a) neutron; (b) law of conservation of mass; (c) proton; (d) main-group element; (e) relative atomic mass; (f) mass number; (g) isotope; (h) cation; (i)
Bohr s Model of the Atom
Bohr Models Bohr s Model of the Atom Focuses on electrons and their arrangement. Bohr stated that electrons move with constant speed in fixed orbits around the nucleus, like planets around a sun. Bohr
Basics of Nuclear Physics and Fission
Basics of Nuclear Physics and Fission A basic background in nuclear physics for those who want to start at the beginning. Some of the terms used in this factsheet can be found in IEER s on-line glossary.
Chapter 18: The Structure of the Atom
Chapter 18: The Structure of the Atom 1. For most elements, an atom has A. no neutrons in the nucleus. B. more protons than electrons. C. less neutrons than electrons. D. just as many electrons as protons.
PROTONS AND ELECTRONS
reflect Imagine that you have a bowl of oranges, bananas, pineapples, berries, pears, and watermelon. How do you identify each piece of fruit? Most likely, you are familiar with the characteristics of
CHM 1311: General Chemistry 1, Fall 2004 Exam #1, September 8, 2004. Name (print) SSN
CHM 1311: General Chemistry 1, Fall 2004 Exam #1, September 8, 2004 Name (print) SSN Pledge: I have neither given nor received aid on this exam: Signature For ALL problems: SHOW ALL WORK TO GET FULL CREDIT
AP Chemistry A. Allan Chapter 1 Notes - Chemical Foundations
AP Chemistry A. Allan Chapter 1 Notes - Chemical Foundations 1.1 Chemistry: An Overview A. Reaction of hydrogen and oxygen 1. Two molecules of hydrogen react with one molecule of oxygen to form two molecules
Approved July 12, 2004
Fifth Grade Science Curriculum The Georgia Performance Standards are designed to provide students with the knowledge and skills for proficiency in science at the fifth grade level. The Project 2061 s Benchmarks
CH3 Stoichiometry. The violent chemical reaction of bromine and phosphorus. P.76
CH3 Stoichiometry The violent chemical reaction of bromine and phosphorus. P.76 Contents 3.1 Counting by Weighing 3.2 Atomic Masses 3.3 The Mole 3.4 Molar Mass 3.5 Percent Composition of Compounds 3.6
History of the Atom & Atomic Theory
Chapter 5 History of the Atom & Atomic Theory You re invited to a Thinking Inside the Box Conference Each group should nominate a: o Leader o Writer o Presenter You have 5 minutes to come up with observations
Chapter 5 TEST: The Periodic Table name
Chapter 5 TEST: The Periodic Table name HPS # date: Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The order of elements in the periodic table is based
Element of same atomic number, but different atomic mass o Example: Hydrogen
Atomic mass: p + = protons; e - = electrons; n 0 = neutrons p + + n 0 = atomic mass o For carbon-12, 6p + + 6n 0 = atomic mass of 12.0 o For chlorine-35, 17p + + 18n 0 = atomic mass of 35.0 atomic mass
Solar Energy Production
Solar Energy Production We re now ready to address the very important question: What makes the Sun shine? Why is this such an important topic in astronomy? As humans, we see in the visible part of the
Nuclear Physics. Nuclear Physics comprises the study of:
Nuclear Physics Nuclear Physics comprises the study of: The general properties of nuclei The particles contained in the nucleus The interaction between these particles Radioactivity and nuclear reactions
Chapter 2: The Chemical Context of Life
Chapter 2: The Chemical Context of Life Name Period This chapter covers the basics that you may have learned in your chemistry class. Whether your teacher goes over this chapter, or assigns it for you
Forensic Science Curriculum
Forensic Science Curriculum The Georgia Performance Standards are designed to provide students with the knowledge and skills for proficiency in science. The Project 2061 s Benchmarks for Science Literacy
The Mole Concept and Atoms
Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 4 24 September 2013 Calculations and the Chemical Equation The Mole Concept and Atoms Atoms are exceedingly
Potassium-Argon (K-Ar) Dating
Potassium-Argon (K-Ar) Dating K-Ar Dating In 10,000 K atoms: 9326 39 K 673 41 K 1 40 K Potassium Decay Potassium Decay Potassium Decay Argon About 1% of atmosphere is argon Three stable isotopes of argon
Structure and Properties of Atoms
PS-2.1 Compare the subatomic particles (protons, neutrons, electrons) of an atom with regard to mass, location, and charge, and explain how these particles affect the properties of an atom (including identity,
Review of the isotope effect in the hydrogen spectrum
Review of the isotope effect in the hydrogen spectrum 1 Balmer and Rydberg Formulas By the middle of the 19th century it was well established that atoms emitted light at discrete wavelengths. This is in