CHAPTER What type of particle is emitted when a U-235 decays to Np-235? a. alpha particle b. beta particle c. neutron d. helium nuclei.

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "CHAPTER What type of particle is emitted when a U-235 decays to Np-235? a. alpha particle b. beta particle c. neutron d. helium nuclei."

Transcription

1 CHAPTER What type of particle is emitted when a U-235 decays to Np-235? a. alpha particle b. beta particle c. neutron d. helium nuclei 2. Stable nuclei (that is, nonradioactive nuclei) have mass numbers that are a. equal to the atomic number b. twice as large as the atomic number or even larger c. ten times the atomic number d. less than twice as large as the atomic number 3. Which type of radiation has a charge of +1 and a mass of zero? a. positron b. beta c. alpha d. neutron 4. Copper-64 in the form of copper acetate is used for a. in the diagnosis of brain tumors b. in the treatment of brain tumors c. in both diagnosis and treatment of brain tumors d. because Cu-64 has a long half-life 5. Radon in the air arises from a. sun's ultraviolet radiation that enters earth's atmosphere b. radioactive decay of uranium in the soil c. increased use of microwave devices by humans d. radiation produced by worldwide use of electrical power lines 171

2 6. Who first discovered radioactivity? a. Ernest Rutherford b. Max Planck c. Marie Curie d. Henri Becquerel 7. Which type of radiation is the most penetrating? a. gamma b. alpha c. beta d. all have about the same penetrating power 8. Which is generally not associated with nuclear reactions? a. outer electrons b. atomic number c. atomic mass d. the nucleus 9. The nuclear reaction that changes one element into another element is called a a. chemical reaction b. half-life c. transmutation d. decay series 10. If the half-life of an element is 5 days and 100 milligrams of that element is initially available, how many milligrams of the element are present after 25 days? a. 50 b. 100/25 c. 100/32 d. 100/64 172

3 11. In the symbol 238 U, the 238 is a. the mass number b. the atomic number c. the number of neutrons in the atom d. the number of protons in the atom 12. The product of the beta ( 1 0 β ) decay of thorium-234 is a. uranium-238 b. protactinium-234 c. uranium-234 d. uranium The product of the alpha ( 2 4 α ) decay of uranium-238 is a. Th-234 b. Th-230 c. U-234 d. U What is the "stable" nucleus produced at the end of the decay steps in the uranium decay series? a. thorium b. uranium c. radon d. lead 15. Who was first to produce and describe an artificial nuclear reaction with the bombardment of nitrogen with alpha particles? a. Geiger b. Wilson c. Rutherford d. Chadwick 173

4 9 16. What is the nucleus produced when beryllium-9, ( 4 Be ), fuses with helium-4? a. oxygen-17 b. carbon-13 c. carbon-14 d. carbon To make an alpha particle fuse with the nucleus of another atom, you need to a. aim carefully b. give the alpha particle a negative charge c. give the alpha particle a large amount of energy d. slow the particles down by cooling 18. The first transuranium element to be discovered was a. Np b. Pu c. Hf d. Am 19. What is the ultimate radioactive decay product of the uranium-238 series? a. radon gas b. lead c. uranium-235 d. alpha particles 20. How many atoms of zinc-69 remain after a sample of 500,000 zinc-69 atoms decays for a period of 165 minutes? The half-life time for zinc-69 is 55 minutes. a. 500,000 b. 62,500 c. 250,000 d. 125,

5 21. Which is larger in terms of radioactive disintegrations per second? a. one millicurie b. one microcurie c. one curie d. one picocurie 22. The Food and Drug Administration, FDA, has approved the use of food irradiation to prevent the growth of bacteria, molds, and yeasts in which of the following foods. a. uncooked beef b. uncooked pork c. uncooked poultry d. all of the above 23. In 1934, when the Curies bombarded Al-27 with an alpha particle ( 2 4 α ), the element produced was a. silicon-29 and a neutron b. phosphorus-30 and a neutron c. silicon-29 and a positron d. phosphorus-30 and a positron 24. When the nucleus of an atom of uranium-238 emits an alpha particle, the mass number will a. decrease by 4 units b. decrease by 2 units c. increase by 4 units d. increase by 2 units 25. Elements with atomic number greater than 83 beyond bismuth, Bi a. are beta emitters b. have short half-lives c. are unstable d. are synthetic 175

6 26. When a radioactive sample decays for 2 half-lives the amount remaining will be of the original. a. 1/4 b. 1/2 b. 1/8 d. unpredictable 27. Gamma radiation from cobalt-60 or cesium-137 is used in a. agricultural research b. dating charcoal paintings c. food irradiation d. medical imaging 28. Which is the opposite of an electron? a. α-particle b. positron c. neutron d. β-particle 29. The quantity, 37,000 disintegration per second, is a. 1 curie b. 1 microcurie c. half-life of carbon-14 d. 1 bequerel 30. In terms of nuclear stability, what atom is the most stable? a. Fe b. H c. U d. element

7 31. Which statement is not true about fission? a. combination of atomic nuclei b. process requires initiation by a neutron c. a chain reaction d. products have smaller nuclei than reactants 32. Which component of a nuclear reactor slows the speed of the neutron? a. shield b. heat-transfer fluid c. moderator d. uranium fuel 33. Which country generates the least amount of electricity by nuclear fission? a. France b. Sweden c. United States d. Belgium 34. Which is true about fusion? a. very high temperatures are required b. occurs in a plasma of charged particles c. produces fewer radioactive byproducts d. all statements are true 35. Which atom can undergo fission by thermal neutrons? a. U-235 b. U-238 c. I-131 d. H-3 177

8 36. The missing nucleus in the equation shown below is Th 2 ---> 4 He +? U Ra Ra U a. b. c. d. 37. Which is not true about plutonium-239? a. an unavoidable by-product in nuclear energy production b. short half-life c. fissionable d. used in nuclear war heads 38. Tritium, H-3, and hydrogen, H-1, are a. fission reactants b. fission products c. fusion reactants d. fusion products 39. The splitting of a nucleus by a slow moving neutron is called a. fission b. fusion c. fragmentation d. annihilation 40. Binding energy of a nucleus is a. the energy emitted when separate neutrons, protons, and electrons combine to form an atom b. the energy required to dissociate an atom into separate neutrons, protons, and neutrons c. equivalent to a quantity of mass expressed by Einstein's equation, E = mc 2 d. all of the preceding answers 178

9 41. A major, unsolved problem with nuclear energy is a. cost b. engineering problems with design reactors c. acquiring land on which to build nuclear reactors d. what to do with nuclear wastes with long half-lives 42. The fusion of nuclei requires a. a critical mass b. plasma at extremely high temperatures c. heavy nuclei d. slow moving (thermal) neutrons 43. What produces the tremendous energy of a nuclear fission reaction? a. some mass being changed into energy b. the splitting of the nucleus c. the extra neutrons produced d. disintegration of the containment building 44. Chernobyl is the site of a 1986 nuclear reactor accident that a. killed 4300 workers who cleaned up the site b. occurred near Kiev, Ukraine c. occurred when the graphite (carbon) core caught fire d. all of these 45. The EPA warns that 8 million homes in the U.S. may have radon contamination higher than the "action level". Why is radon a concern? a. it is linked to breast cancer b. it is linked to lung cancer c. it is linked to prostrate cancer d. all of these 179

10 46. Which type of radiation has no charge or mass? a. positron b. beta c. alpha d. gamma 47. What type of particle is emitted when a Po-210 decays to Pb-206? a. alpha particle b. beta particle c. neutron d. helium nuclei 48. Which type of radiation can penetrate a thin piece of lead? a. gamma b. alpha c. beta d. all the above 49. If the half-life of an element is 12 years. How much of a 5.00 g sample remains after 36 years? a b c d The product of the gamma decay of lead-210 is a. bismuth-210 b. lead-210 c. bismuth 209 d. lead

11 51. Is it possible to determine the age of an artifact that is estimated to be 100,000 years old by radiocarbon dating? a. Yes, because the half-life of carbon is 5730 years b. No, because the half-life of carbon is only 12 years c. Yes, because the amount of carbon remaining is very high d. No, because the amount of carbon remaining is very low 52. Identify the atoms that could be used in nuclear fission and fusion, respectively? a. C-14 and H-3 b. Rn-222 and H-3 c. Rn-222 and U-238 d. Fe-56 and H What is the process in which neutrons from one fission reaction can cause multiple fission reactions in nearby nuclei? a. critical mass b. radiocarbon dating c. chain reaction d. binding energy 54. Identify the high-level radioactive waste? a. weapons industry waste b. laboratory clothing waste c. medical waste d. smoke detector waste 55. The missing nucleus in the equation shown below is Pa e +? U Ra Ra U a. b. c. d. 181

A) B) C) D) Which particle is represented by the letter X?

A) B) C) D) Which particle is represented by the letter X? 1. Which nuclear emission has the greatest mass and the least penetrating power? an alpha particle a beta particle a neutron a positron 2. Which equation represents alpha decay? 3. An unstable nucleus

More information

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. 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.

More information

Nuclear Chemistry Chapter 28 Assignment & Problem Set

Nuclear Chemistry Chapter 28 Assignment & Problem Set Nuclear Chemistry Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. Nuclear Chemistry 2 Study Guide: Things You Must Know Vocabulary (know the definition

More information

Chapter 4 Radioactivity and Medicine. A CT scan (computed tomography) of the brain using X-ray beams

Chapter 4 Radioactivity and Medicine. A CT scan (computed tomography) of the brain using X-ray beams Chapter 4 Radioactivity and Medicine A CT scan (computed tomography) of the brain using X-ray beams A radioactive isotope has an unstable nucleus; it emits radiation to become more stable and can be one

More information

Learning Objectives. Success Criteria. Chemistry Matter and Change pp Chemistry the Central Science p

Learning Objectives. Success Criteria. Chemistry Matter and Change pp Chemistry the Central Science p Nuclear Chemistry Why? Nuclear chemistry is the subdiscipline of chemistry that is concerned with changes in the nucleus of elements. These changes are the source of radioactivity and nuclear power. Since

More information

Radioactivity Review

Radioactivity Review Science Section 7- Name: Block: Radioactivity Review. Complete the following table: Isotope Mass Number Atomic Number (number of protons) Number of Neutrons nitrogen-5 5 7 8 sulfur-3 3 6 neon- magnesium-5

More information

Objectives 404 CHAPTER 9 RADIATION

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

More information

Chapter 4 & 25 Notes Atomic Structure and Nuclear Chemistry Page 1

Chapter 4 & 25 Notes Atomic Structure and Nuclear Chemistry Page 1 Chapter 4 & 25 Notes Atomic Structure and Nuclear Chemistry Page 1 DEFINING THE ATOM Early Models of the Atom In this chapter, we will look into the tiny fundamental particles that make up matter. An atom

More information

Chemistry: Nuclear Reactions Guided Inquiry

Chemistry: Nuclear Reactions Guided Inquiry Chemistry: Nuclear Reactions Guided Inquiry Nuclear reactions change the nucleus of an atom. Chemical Reactions vs. Nuclear Reactions Atoms and molecules are striving to achieve the most stable arrangement.

More information

Exampro GCSE Physics. P2 Radioactivity Self Study Questions Higher tier. Name: Class: Author: Date: Time: 80. Marks: 80. Comments: Page 1 of 30

Exampro GCSE Physics. P2 Radioactivity Self Study Questions Higher tier. Name: Class: Author: Date: Time: 80. Marks: 80. Comments: Page 1 of 30 Exampro GCSE Physics P2 Radioactivity Self Study Questions Higher tier Name: Class: Author: Date: Time: 80 Marks: 80 Comments: Page of 30 Q. A beta particle is a high-energy electron. (i) Which part of

More information

Radioactivity and Balancing Nuclear Reactions: Balancing Nuclear Reactions and Understanding which Particles are Involves

Radioactivity and Balancing Nuclear Reactions: Balancing Nuclear Reactions and Understanding which Particles are Involves 1 General Chemistry II Jasperse Nuclear Chemistry. Extra Practice Problems Radioactivity and Balancing Nuclear Reactions: Balancing Nuclear Reactions and Understanding which Particles are Involved The

More information

radioactivity: a spontaneous (naturally-occurring) emission of particles or radiation from the nuclei of atoms

radioactivity: a spontaneous (naturally-occurring) emission of particles or radiation from the nuclei of atoms CHAPTER 20: Atomic Structure Nuclear Chemistry radioactivity: a spontaneous (naturally-occurring) emission of particles or radiation from the nuclei of atoms Historical Background Roentgen (1895) discovery

More information

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

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Chemistry 1C-Dr. Larson Chapter 21 Review Questions MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) By what process does thorium-230 decay to radium-226?

More information

REVIEW NUCLEAR CHEMISTRY 3/31/16 NAME: PD 3

REVIEW NUCLEAR CHEMISTRY 3/31/16 NAME: PD 3 3/31/16 NAME: PD 3 1. Given the equation representing a nuclear reaction in which X represents a nuclide: Which nuclide is represented by X? 2. Which nuclear emission has the greatest mass and the least

More information

Nuclear Decay. Chapter 20: The Nucleus: A Chemist s View. Nuclear Decay. Nuclear Decay. Nuclear Decay. Nuclear Decay

Nuclear Decay. Chapter 20: The Nucleus: A Chemist s View. Nuclear Decay. Nuclear Decay. Nuclear Decay. Nuclear Decay Big Idea: Changes in the nucleus of an atom can result in the ejection of particles, the transformation of the atom into another element, and the release of energy. 1 Chapter 20: The Nucleus: A Chemist

More information

5. In the equation: 1. Which equation represents the radioactive decay of 226. Ra -

5. In the equation: 1. Which equation represents the radioactive decay of 226. Ra - . Which equation represents the radioactive decay of 6 Ra? 6 Ra - 6 Rn + He 6 6 Ra - 9 Ac + 0 e 6 6 Ra - 7 Fr + 0 + e 6 5 Ra - Ra + 0 n. The chart below shows the spontaneous nuclear decay of U-3 to Th-3

More information

Basics of Nuclear Physics and Fission

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.

More information

Nuclear Reactions- chap.31. Fission vs. fusion mass defect..e=mc 2 Binding energy..e=mc 2 Alpha, beta, gamma oh my!

Nuclear Reactions- chap.31. Fission vs. fusion mass defect..e=mc 2 Binding energy..e=mc 2 Alpha, beta, gamma oh my! Nuclear Reactions- chap.31 Fission vs. fusion mass defect..e=mc 2 Binding energy..e=mc 2 Alpha, beta, gamma oh my! Definitions A nucleon is a general term to denote a nuclear particle - that is, either

More information

Chapter 20: The Nucleus: A Chemist s View

Chapter 20: The Nucleus: A Chemist s View Chapter 20: The Nucleus: A Chemist s View Big Idea: Changes in the nucleus of an atom can result in the ejection of particles, the transformation of the atom into another element, and the release of energy.

More information

Nuke review. Figure 1

Nuke review. Figure 1 Name: Tuesday, June 10, 2008 Nuke review The radioisotopes carbon-14 and nitrogen-16 are present in a living organism. Carbon-14 is commonly used to date a once-living organism. Figure 1 A sample of wood

More information

102 Sample Test 8 SAMPLE TEST FOR CHAPTER 20.

102 Sample Test 8 SAMPLE TEST FOR CHAPTER 20. 102 Sample Test 8 SAMPLE TEST FOR CHAPTER 20. 1. Radioactivity is a. emission of visible light after exposure to light. b. spontaneous emission of penetrating radiation that is not stimulated by light.

More information

Nuclear Terminology. Nuclear Chemistry. Nuclear Chemistry. Nuclear Chemistry. Nuclear Reactions. Types of Radioactivity 9/1/12

Nuclear Terminology. Nuclear Chemistry. Nuclear Chemistry. Nuclear Chemistry. Nuclear Reactions. Types of Radioactivity 9/1/12 Nuclear Chemistry Up to now, we have been concerned mainly with the electrons in the elements the nucleus has just been a positively charged thing that attracts electrons The nucleus may also undergo changes

More information

Exam Review: Topic 07 Nuclear Physics Practice Test: 33 marks (43 minutes) Additional Problem: 31 marks (46 minutes)

Exam Review: Topic 07 Nuclear Physics Practice Test: 33 marks (43 minutes) Additional Problem: 31 marks (46 minutes) Practice Test: 33 marks (43 minutes) Additional Problem: 3 marks (46 minutes). Which of the following causes the greatest number of ionizations as it passes through cm of air? (The total energy of the

More information

Chapter 20: Nuclear Chemistry

Chapter 20: Nuclear Chemistry Chapter 2: Nuclear Chemistry Nuclear Reactions vs. Chemical Reactions There are some very distinct differences between a nuclear reaction and a chemical reaction. in a chemical reaction bonds break, atoms

More information

CHM1 Review for Exam 8

CHM1 Review for Exam 8 The following are topics and sample questions for the first exam. Topics 1. Subatomic particles a. Alpha, α 42He 2+ b. Beta, β 0-1e c. Positron, β + 0 +1e 0 d. gamma, γ 0γ 1 e. neutron, n 0n 1 f. proton,

More information

AS91172 version 1 Demonstrate understanding of atomic and nuclear physics Level 2 Credits 3

AS91172 version 1 Demonstrate understanding of atomic and nuclear physics Level 2 Credits 3 AS91172 version 1 Demonstrate understanding of atomic and nuclear physics Level 2 Credits 3 This achievement standard involves demonstrating understanding of atomic and nuclear physics. Assessment typically

More information

Structure and Properties of Atoms

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,

More information

Chem 1151 Lab 5 - Nuclear Chemistry

Chem 1151 Lab 5 - Nuclear Chemistry Chem 1151 Lab 5 - Nuclear Chemistry Learning Objectives: 1) Understand the concept of radioactive decay 2) Know the change associated with an alpha, beta or gamma decay of a nucleus 3) Write the product

More information

UCCS Energy Science II ENSC 1510 Spring 2012 Test 3 name:

UCCS Energy Science II ENSC 1510 Spring 2012 Test 3 name: UCCS Energy Science II ENSC 1510 Spring 2012 Test 3 name: 1. The particles that make up neutrons and protons are called: a. electrons b. positrons c. quarks d. strings 2. The antiparticle for the electron

More information

Chapter 21 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Chapter 21 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Chapter 21 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) In balancing the nuclear reaction 293 92 U 234 90 E + 4 He, the identity of element

More information

Nuclear Power. The True meaning Of Nuclear Power On Earth

Nuclear Power. The True meaning Of Nuclear Power On Earth Nuclear Power The True meaning Of Nuclear Power On Earth Basics of Fission Nuclear Fission is the division of generally large and unstable elements (like uranium and plutonium) into smaller elements Nuclear

More information

Name KEY Period. CRHS Academic Chemistry Unit 3 Atomic Structure and Nuclear Chemistry NOTES. Key Dates

Name KEY Period. CRHS Academic Chemistry Unit 3 Atomic Structure and Nuclear Chemistry NOTES. Key Dates Name KEY Period CRHS Academic Chemistry Unit 3 Atomic Structure and Nuclear Chemistry NOTES 52 24 Cr Mass Number Symbol Atomic Number Quiz Date Key Dates Exam Date Lab Dates Notes, Homework, Exam Reviews

More information

Radiation and the Universe B+ questions

Radiation and the Universe B+ questions Radiation and the Universe B+ questions Name: Q. The diagram below shows a method of controlling the thickness of paper produced at a paper mill. A radioactive source which emits beta radiation is placed

More information

Natural Radioactivity

Natural Radioactivity Natural Radioactivity True or false The food we eat is a natural source of radiation. True or false Radiation dose can be measured in rem, gray or rad. True or false Older homes are more susceptible to

More information

Nuclear Stability. From Hyperphysics:

Nuclear Stability. From Hyperphysics: Radioactive Decay Certain isotopes of elements are unstable and decompose through one of several processes that release particles or high-energy electromagnetic radiation. In this unit we'll cover examples

More information

Conceptual Physics Fundamentals

Conceptual Physics Fundamentals Conceptual Physics Fundamentals Chapter 16: THE ATOMIC NUCLEUS AND RADIOACTIVITY This lecture will help you understand: Radioactivity Alpha, Beta, and Gamma Rays The Atomic Nucleus and the Strong Force

More information

Nuclear Reactions Fission And Fusion

Nuclear Reactions Fission And Fusion Nuclear Reactions Fission And Fusion Describe and give an example of artificial (induced) transmutation Construct and complete nuclear reaction equations Artificial transmutation is the changing or manipulation

More information

Chapter 28. Radioactivity. Types of Radiation. Beta Radiation. Alpha Radiation. Section 28.1 Nuclear Radiation. Objectives: Nuclear Radiation

Chapter 28. Radioactivity. Types of Radiation. Beta Radiation. Alpha Radiation. Section 28.1 Nuclear Radiation. Objectives: Nuclear Radiation Section 28.1 Nuclear Radiation Chapter 28 Nuclear Radiation Objectives: Discuss the processes of radioactivity and radioactive decay Characterize alpha, beta, and gamma radiation in terms of composition

More information

Atomic Origins: Chapter Problems

Atomic Origins: Chapter Problems Atomic Origins: Chapter Problems Big Bang 1. How old is the Universe? 2. Name and describe the three subatomic particles. 3. Nuclear fusion reactions power stars. Name 2 elements that can be formed in

More information

Chapter 17: Radioactivity and Nuclear Chemistry

Chapter 17: Radioactivity and Nuclear Chemistry Chapter 7: Radioactivity and Nuclear Chemistry Problems: -20, 24-30, 32-46, 49-70, 74-88, 99-0 7.2 THE DISCOVERY OF RADIOACTIVITY In 896, a French physicist named Henri Becquerel discovered that uranium-containing

More information

VO Atomic bombs, nuclear power plants, and the sun are powered as the result of releasing of nuclear energy.

VO Atomic bombs, nuclear power plants, and the sun are powered as the result of releasing of nuclear energy. Physics and Chemistry 1501 Nuclear Science Part I Atomic bombs, nuclear power plants, and the sun are powered as the result of releasing of nuclear energy. (Read objectives on screen.) In this program,

More information

Nuclear Physics. Remember: Particles have a wave nature. Only certain wavelengths meet the boundary conditions, so only certain energies are allowed.

Nuclear Physics. Remember: Particles have a wave nature. Only certain wavelengths meet the boundary conditions, so only certain energies are allowed. Nuclear Physics The forces holding together the nucleus are large. And so are the energies involved. Radioactivity is a natural process. Certain nuclei fall apart and emit ionizing radiation as they do.

More information

CHEM J-4 June 2014

CHEM J-4 June 2014 CHEM1101 014-J-4 June 014 Technetium-99m is an important radionuclide for medical imaging. It is produced from molybdenum-99. Fill in the box below to give a balanced nuclear equation for the production

More information

CHEM 103 Spring 2006 Final Exam 5 June 2006

CHEM 103 Spring 2006 Final Exam 5 June 2006 Name CHEM 103 Spring 2006 Final Exam 5 June 2006 Multiple Choice (5 points each) Write the letter of the choice that best completes the statement or answers the question in the blank provided 1. An aqueous

More information

The Atom. Unit 3 Atomic Structure And Nuclear Chemistry. Ancient Ideas of the Atom. Ancient Ideas of the Atom. Ancient Ideas of the Atom

The Atom. Unit 3 Atomic Structure And Nuclear Chemistry. Ancient Ideas of the Atom. Ancient Ideas of the Atom. Ancient Ideas of the Atom 1 The Atom Unit 3 Atomic Structure And Nuclear Chemistry What are the basic parts of an atom? How is an atom identified? What is nuclear chemistry? How is a nuclear equation written? Atom Smallest particle

More information

1. According to quantum theory, light energy is carried in discrete units called. A) protons B) photons C) photoelectrons D) quarks

1. According to quantum theory, light energy is carried in discrete units called. A) protons B) photons C) photoelectrons D) quarks Name: Photon Energy. ccording to quantum theory, light energy is carried in discrete units called. ) protons ) photons ) photoelectrons ) quarks 2. In which part of the electromagnetic spectrum does a

More information

The Nucleus of the Atom

The Nucleus of the Atom The Nucleus of the Atom Chapter 12 Great Idea: Nuclear energy depends on the conversion of mass into energy Chapter Outline Empty Space, Explosive Energy The Organization of the Nucleus Radioactivity Energy

More information

22.1 Nuclear Reactions

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

More information

Li Lithium Nuclear Physics. Atom Basics. Atom Basics. Symbol Charge Mass(u) Electron e p Proton. Neutron

Li Lithium Nuclear Physics. Atom Basics. Atom Basics. Symbol Charge Mass(u) Electron e p Proton. Neutron atom the smallest particle of an element that retains the chemical properties of that element An atom is composed of Nucleons Protons Subatomic Neutrons Particles Electrons Atom Basics The number of protons

More information

Nuclear Physics. Nuclear Physics comprises the study of:

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

More information

Increasing Energy Decreasing Energy Increasing Frequency Decreasing Frequency Decreasing Wavelength Increasing Wavelength

Increasing Energy Decreasing Energy Increasing Frequency Decreasing Frequency Decreasing Wavelength Increasing Wavelength Chapter 7 Radiation and Nuclear Energy radiation - energy given off by a body electromagnetic radiation - energy which is made up of a varying electrical field and a varying magnetic field. The fields

More information

Unit 1 Practice Test. Matching

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

More information

Nuclear Chemistry. Chapter 19. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Nuclear Chemistry. Chapter 19. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Nuclear Chemistry Chapter 19 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1 Chemical Processes vs. Nuclear Processes Chemical reactions involve changes in

More information

LI 1 Revision of Atomic Structure and Nuclide Notations

LI 1 Revision of Atomic Structure and Nuclide Notations Topic 13 National 5 Chemistry Summary Notes Nuclear Chemistry In this topic you will learn about radioactive elements whose atoms are so unstable that they have to release radiation in order to become

More information

7 Radioactivity and particles

7 Radioactivity and particles 7 Radioactivity and particles 7 Radioactivity and particles Calculations a) i) 57 00Fm 53 57 98Cf + 4 He 37 55 Cs 37 56Ba + 0 55 e a) i) c) i) The upper number is the mass number the number of protons

More information

Radiation Properties

Radiation Properties Page 1 of 17 Radiation Properties The Atom The Bohr Model of the atom consists of a central nucleus composed of neutrons and protons surrounded by a number of orbital electrons equal to the number of protons.

More information

Nuclear Fission and Fusion

Nuclear Fission and Fusion CHAPTER 0 2 SECTION Nuclear Changes Nuclear Fission and Fusion KEY IDEAS As you read this section, keep these questions in mind: What holds the nucleus of an atom together? What happens when the nucleus

More information

Nuclear Energy. Nuclear Energy. Nuclear Energy

Nuclear Energy. Nuclear Energy. Nuclear Energy Nuclear energy - energy from the atomic nucleus. Nuclear fission (i.e. splitting of nuclei) and nuclear fusion (i.e. combining of nuclei) release enormous amounts of energy. Number of protons determines

More information

Chapter 16 Nuclear Chemistry

Chapter 16 Nuclear Chemistry Chapter 16 275 Chapter 16 Nuclear Chemistry Review Skills 16.1 The Nucleus and Radioactivity Nuclear Stability Types of Radioactive Emissions Nuclear Reactions and Nuclear Equations Rates of Radioactive

More information

Exemplar for Internal Achievement Standard Level 2

Exemplar for Internal Achievement Standard Level 2 Exemplar for Internal Achievement Standard 91172 Level 2 This exemplar supports assessment against: Achievement Standard 91172 Demonstrate understanding of atomic and nuclear physics An annotated exemplar

More information

1. A release of energy is a sign that. 5. The substance that is formed in a chemical reaction is called the. A. a physical change gust occurred

1. A release of energy is a sign that. 5. The substance that is formed in a chemical reaction is called the. A. a physical change gust occurred 1. A release of energy is a sign that A. a physical change gust occurred B. a chemical change is taking place 5. The substance that is formed in a chemical reaction is called the A. reactant B. product

More information

Antoine Henri Becquerel was born in Paris on December 15, 1852

Antoine Henri Becquerel was born in Paris on December 15, 1852 Discovery Antoine Henri Becquerel was born in Paris on December 15, 1852 Summit Environmental Technologies, Inc. Analytical Laboratories 3310 Win Street Cuyahoga Falls, Ohio 44223 Fax: 1-330-253-4489 Call

More information

Development of the Atomic Bomb

Development of the Atomic Bomb Chapter 28 Nuclear Fission Fission, Fusion, Binding Energy, and Half Life How would we write this Nuclear Reaction? Uranium Isotopes Naturally occurring Uranium contains two major isotopes Uranium-238

More information

Work Sheet 13 Some question to ponder about nuclear chemistry

Work Sheet 13 Some question to ponder about nuclear chemistry Work Sheet 13 Some question to ponder about nuclear chemistry 1. A person goes to get radiation treatment for cancer utilizing brachytherapy in which a small radioactive source is placed directly into

More information

Alpha, Beta and Gamma Rays. Radioactivity. Remember the Periodic Table? Emission of high energy photons and particles

Alpha, Beta and Gamma Rays. Radioactivity. Remember the Periodic Table? Emission of high energy photons and particles Radioactivity Emission of high energy photons and particles Alpha, Beta and Gamma Rays Elements heavier than lead (Z=82), are radioactive Radioactive materials emit: alpha particles (helium nucleus) beta

More information

Physics 1104 Midterm 2 Review: Solutions

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

More information

11. Nuclear Chemistry Stable and Unstable Nuclides. Very large nuclei tend to be unstable because of the:

11. Nuclear Chemistry Stable and Unstable Nuclides. Very large nuclei tend to be unstable because of the: 11. Nuclear Chemistry Chemical reactions occur as a result of loosing/gaining and sharing electrons in the valance shell which is far away from the atomic nucleus as we described in previous chapters in

More information

Subatomic Particles. Nuclear Energy. Mass and Energy. Chemistry in Context: Chapter 7: Fires of Nuclear Fission

Subatomic Particles. Nuclear Energy. Mass and Energy. Chemistry in Context: Chapter 7: Fires of Nuclear Fission Nuclear Energy Chemistry in Context: Chapter 7: Fires of Nuclear Fission Assignment: All the problems with blue codes or answers on Page 530 1957, the first nuclear power plant near Pittsburgh, PA. Seabrook

More information

When radioactive substances decay

When radioactive substances decay When radioactive substances decay P2 72 minutes 72 marks Page of 3 Q. (a) The names of three types of radiation are given in List A. Some properties of these three types of radiation are given in List

More information

Print your name. NAID number

Print your name. NAID number October 18, 2001 Chemistry 117 Exam 1 Print your name. NAID number Important Instructions: This exam consists of multiple parts. For the multiple choice component follow the instructions below. 1) Use

More information

Nuclear Transmutations ( Nucleosynthesis )

Nuclear Transmutations ( Nucleosynthesis ) Nuclear Transmutations ( Nucleosynthesis ) Nucleosynthesis reactions in the interior of stars have produced nearly all of the naturally occurring elements on earth. In a nuclear transmutation a nucleus

More information

Unit 1 Atomic Structure

Unit 1 Atomic Structure Unit Atomic Structure 4. Defining the Atom I. Atomic Theory A. Modern Atomic Theory. All matter is made up of very tiny particles called atoms. Atoms of the same element are chemically alike 3. Individual

More information

Regents Review Nuclear Worksheet Mr. Beauchamp

Regents Review Nuclear Worksheet Mr. Beauchamp Regents Review Mr. Beauchamp. Given the nuclear equation: H + X 6 3 Li + 4 He The particle repr esented by X is 9 4 Li 9 4 Be 0 5 Be 0 6 C. Which isotope will spontaneously decay and emit particles with

More information

Chapter 4 - Elements and the Periodic Table

Chapter 4 - Elements and the Periodic Table Chapter 4 - Elements and the Periodic Table I. Introduction to atoms A. Development of atomic models 1. Atom, smallest particle of an element 2. Parts of atom a. Electrons, negatively charged b. Protons,

More information

Chapter 7: The Fires of Nuclear Fission

Chapter 7: The Fires of Nuclear Fission Chapter 7: The Fires of Nuclear Fission What is nuclear fission? Is using nuclear energy safe for humans and the environment? Is nuclear energy better to use than electric generated energy? What happens

More information

Lecture 40 Chapter 34 Nuclear Fission & Fusion Nuclear Power

Lecture 40 Chapter 34 Nuclear Fission & Fusion Nuclear Power Lecture 40 Chapter 34 Nuclear Fission & Fusion Nuclear Power Final Exam - Monday Dec. 20, 1045-1315 Review Lecture - Mon. Dec. 13 7-Dec-10 Short-Range Strong Nuclear Force The strong force is most effective

More information

The chart below shows the change in mass number and atomic number of an atom for different types of radioactive decay.

The chart below shows the change in mass number and atomic number of an atom for different types of radioactive decay. High Demand Questions QUESTIONSHEET 1 The chart below shows the change in mass number and atomic number of an atom for different types of radioactive decay. change in atomic number change in mass number

More information

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

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which one of the following statements about the atomic nucleus is accurate? A) The nucleus

More information

Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Nuclear Chemistry Chapter 9 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Atomic number (Z) = number of protons in nucleus Mass number (A) = number of protons

More information

Noble Gases. Outline Nobel Gas Elements Radon and Health Chemistry Homework

Noble Gases. Outline Nobel Gas Elements Radon and Health Chemistry Homework Radon and Other Noble Gases The elements in the last column of the periodic table are all very stable, mono-atomic gases. Until 1962, they were called inert gases because they did not react with other

More information

Understanding the Atom

Understanding the Atom CHAPTER 9 Understanding the Atom LESSON 2 Protons, Neutrons, and Electrons How Atoms Differ What do you think? Read the three statements below and decide whether you agree or disagree with them. Place

More information

EXPERIMENT 1 ELECTROSCOPE RADIATION DETECTOR

EXPERIMENT 1 ELECTROSCOPE RADIATION DETECTOR Name: Class: Date: INSTRUCTOR S KEY Radiation, Radioactivity, and Risk Assessment EXPERIMENT 1 ELECTROSCOPE RADIATION DETECTOR 1. The leaves repel each other because their electrostatic charges are the

More information

Radioactive Elements (pages )

Radioactive Elements (pages ) SX05_BkK_AdRdStdyWkBk.fm Page 58 Monday, April 18, 2005 8:09 AM Radioactive Elements (pages 139 146) Radioactivity (pages 140 141) Key Concept: In 1896, the French scientist Henri Becquerel discovered

More information

NAME PER DATE DUE ACTIVE LEARNING IN CHEMISTRY EDUCATION CHAPTER 28 NUCLEAR CHEMISTRY. (Part 1) 28-1 1997, A.J. Girondi

NAME PER DATE DUE ACTIVE LEARNING IN CHEMISTRY EDUCATION CHAPTER 28 NUCLEAR CHEMISTRY. (Part 1) 28-1 1997, A.J. Girondi NAME PER DATE DUE ACTIVE LEARNING IN CHEMISTRY EDUCATION CHAPTER 8 NUCLEAR CHEMISTRY (Part ) 8-997, A.J. Girondi NOTICE OF RIGHTS All rights reserved. No part of this document may be reproduced or transmitted

More information

TO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE

TO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE TO GO TO ANY OF THE PAGES LISTED BELOW, CLICK ON ITS TITLE CHAPTER 11 Radioactive Elements 1 11-1 What elements are not metals? 2 11-2 What are metalloids? 3 Semiconductors Enrichment Activity for Lesson

More information

GCSE RADIOACTIVITY. Radioactivity. Table 1 Atomic number 38. Mass number 90

GCSE RADIOACTIVITY. Radioactivity. Table 1 Atomic number 38. Mass number 90 Radioactivity Name & set 1 Table 1 gives some information about the radioisotope strontium-90. Table 1 Atomic number 38 Mass number 90 Half-life 28.1 years Strontium-90 emits ß (beta) particles. Table

More information

fission and fusion: a Physics kit

fission and fusion: a Physics kit half-life Number of particles left The half-life of an element tells us how long it will take for half of the nuclei in a sample of an unstable element to decay. So, after one half-life, only half of the

More information

Intermediate 2 Physics. Radioactivity

Intermediate 2 Physics. Radioactivity Intermediate 2 Physics Radioactivity neutron electron proton ROR Page 1 Ionising Radiation What is an atom? Scientists believe that an atom is made up of three types of particle. 1. protons: positively

More information

The Atom. The atom is made of subatomic particles, the proton neutron and electron. A summary of these particles is shown below.

The Atom. The atom is made of subatomic particles, the proton neutron and electron. A summary of these particles is shown below. The Atom Homework from the book: Exercises: 1-23, 25-27, 31-36 Questions: 4-6 Problems 15 In the study guide: All the Multiple choice starting on page 101. The Atom All matter in the universe if made of

More information

End-of-Chapter Exercises

End-of-Chapter Exercises The equation that describes the exponential decay in the number of nuclei of a particular radioactive isotope as a function of time t is, (Equation 29.12: The exponential decay of radioactive nuclei) where

More information

[Note] In the questions Y-N means that the mass number of nuclide Y is N.

[Note] In the questions Y-N means that the mass number of nuclide Y is N. Problem Set #1: Nuclear Transformations [Note] In the questions Y-N means that the mass number of nuclide Y is N. 1. Among the following physical units, which is not the unit of energy? a) Joule, J b)

More information

Nuclear Fission and Fusion

Nuclear Fission and Fusion Why? Nuclear Fission and Fusion Fission and fusion are two processes that alter the nucleus of an atom. Nuclear fission provides the energy in nuclear power plants and fusion is the source of the sun s

More information

Student Instructions. 1. Ensure that you have blank paper and a Data Booket.. 2. Record all aswers on a separate piece of paper.

Student Instructions. 1. Ensure that you have blank paper and a Data Booket.. 2. Record all aswers on a separate piece of paper. Student Instructions 1. Ensure that you have blank paper and a Data Booket.. 2. Record all aswers on a separate piece of paper. 3. Answer keys are provided at the beginning of each section. 4. When you

More information

Take notes while watching the following video tutorials to prepare for the Atomic Structure and Nuclear Chemistry Activity.

Take notes while watching the following video tutorials to prepare for the Atomic Structure and Nuclear Chemistry Activity. Take notes while watching the following video tutorials to prepare for the Atomic Structure and Nuclear Chemistry Activity. Atomic Structure Introduction dabe page 1 Atoms & Elements Part 0: Atomic Structure

More information

Unit 4: The Nucleus-key Regents Chemistry Mr. Murdoch. Unit 4: The Nucleus. Student Name: Key. Class Period: Page 1 of 55. Website upload 2014

Unit 4: The Nucleus-key Regents Chemistry Mr. Murdoch. Unit 4: The Nucleus. Student Name: Key. Class Period: Page 1 of 55. Website upload 2014 Unit 4: The Nucleus Student Name: Key Class Period: Page 1 of 55 Page intentionally blank Page 2 of 55 Unit 4 Vocabulary: 1. Artificial transmutation: Changing one element into another by bombarding it

More information

Main properties of atoms and nucleus

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

More information

Valence Electrons HELIUM ATOM LITHIUM ATOM. Helium has two valence electrons. Lithium has one valence electron

Valence Electrons HELIUM ATOM LITHIUM ATOM. Helium has two valence electrons. Lithium has one valence electron Valence Electrons LITHIUM ATOM HELIUM ATOM Lithium has one valence electron Helium has two valence electrons Oxidation Numbers 1+ + 3+ 4+ 3- - 1-0 Transistion metals - variable oxidation numbers Oxidation

More information

ISOTOPES & AVERAGE ATOMIC MASS

ISOTOPES & AVERAGE ATOMIC MASS ISOTOPES & AVERAGE ATOMIC MASS Agenda P. 26-27-Average Atomic Mass (O/S) HW: P.27# 1; P.29 # 1-9 and w/s ATOMS Each elements is made up unique atoms The atoms of an element have identical chemical properties

More information

Introduction to Nuclear Physics

Introduction to Nuclear Physics Introduction to Nuclear Physics 1. Atomic Structure and the Periodic Table According to the Bohr-Rutherford model of the atom, also called the solar system model, the atom consists of a central nucleus

More information

location in the atom relative mass relative charge

location in the atom relative mass relative charge WAHS Chemistry Unit 4: Atomic Structure 1 Unit Assignment #1 Complete the Important Chemistry Scientists assignment that will be assigned. Be sure to know all of the scientists and their important contribution

More information