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Isotopes

Isotopes. deuterium. hydrogen. tritium. Nuclear strong force. Electrostatic repulsion. Radioactive Decay. Bubble Chamber. Uranium Decay. C14 Dating. -- Questions --. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

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Isotopes

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  1. Isotopes deuterium hydrogen tritium Nuclear strong force

  2. Electrostatic repulsion Radioactive Decay

  3. Bubble Chamber

  4. Uranium Decay

  5. C14 Dating

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

  7. 1) Most of the radioactivity we personally encounter comes from • A) nuclear power plants. • B) medical X rays. • C) the natural environment. • D) fallout from past and present testing of nuclear weapons. • 2) In order for an atom to decay to an element which is one greater in atomic number, it can emit • A) one beta particle. • B) one positron and 2 beta particles. • C) one alpha particle and 3 beta particles. • D) all of these. • E) none of these.

  8. 3) When a beta particle is ejected from a nucleus, the nucleus then has a greater • charge. • B) mass. • C) both of these. • D) neither of these. • 4) Carbon dating requires that the object being tested contain • organic material. • B) sugar molecules. • C) charcoal. • D) inorganic material. • E) none of these.

  9. 5) Electric forces within an atomic nucleus tend to • push it apart. • hold it together. • C) neither of these. • 6) The end result of radioactive decay can be a different • A) atom. • B) element. • C) isotope. • D) all of these. • E) none of these.

  10. 7) The atomic mass number of an element is the same as the number of its • neutrons. • nucleons. • protons. • D) none of these. • 8) It's impossible for a hydrogen atom to emit an alpha particle. • False. • B) True.

  11. 9) In bubble chambers, charged particles move in spirals because • A) the magnetic field decreases. • B) of perspective and parallax. • C) of energy dissipation. • D) the electric charge decreases. • E) the electric charge increases. • 10) The half life of carbon 14 is 5730 years. If a 1-gram sample of old carbon is 1/8 as radioactive as 1-gram of a current sample, then the age of the old sample is about • A) 716 years. • B) 11,500 years. • C) 17,200 years. • D) 22,900 years. • E) 46,000 years.

  12. 11) When the hydrogen isotope tritium-3 emits a beta particle, it becomes an isotope of • A) lithium. • B) carbon. • C) helium. • D) hydrogen. • E) none of these. • 12) All deposits of natural uranium contain appreciable amounts of • A) gold. • B) iron. • C) lead. • D) all of these. • E) none of these particularly.

  13. 13) A quark is • A) a building block of nucleons. • B) a building block of hadrons. • C) an elementary particle. • D) all of these. • E) none of these. • 14) When a beta particle is ejected from a nucleus, the nucleus then has slightly • A) smaller charge and significantly greater mass. • B) greater mass and smaller charge. • C) smaller mass and significantly greater charge. • D) greater mass and charge.

  14. 15) A certain radioactive isotope placed near a Geiger counter registers 120 counts per minute. If the half life of the isotope is one day, what will the count rate be at the end of four days? • A) 30 counts/min • B) 15 counts/min • C) 10 counts/min • D) 7.5 counts/min • E) 5 counts/min • 16) The mass of an atomic nucleon is nearly • A) twice the mass of an electron. • B) four times the mass of an electron. • C) a thousand times the mass of an electron. • D) two thousand times the mass of an electron.

  15. -- Answers -- MULTIPLE CHOICE. The one alternative that best completes the statement or answers the question.

  16. Chapter 33 1) Answer: C 2) Answer: D 3) Answer: A 4) Answer: A 5) Answer: A 6) Answer: D 7) Answer: B 8) Answer: B 9) Answer: C 10) Answer: C 11) Answer: C 12) Answer: C 13) Answer: D 14) Answer: C, D 15) Answer: D 16) Answer: D

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