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NUCLEAR CHEMISTRY TEST.
Contributed by: Lopez
  • 1. What is the product when alpha particles bombarded 231-Pa?
A) thorium
B) samarium
C) uranium
D) lathanium
E) Actinium
  • 2. What is the product when Francium-223 is bombarded by beta particles.
A) erbium
B) neptunium
C) lathanium
D) sodium
E) radium
  • 3. In nuclear notation, what is the number found at the upper left corner of the element?
A) electrons
B) mass number
C) neutrons
D) atomic number
E) protons
  • 4. What is the particle without mass?
A) alpha
B) positron
C) electron capture
D) gamma
E) beta
  • 5. The subatomic particles affected during nuclear reactions are
A) protons and neutrons
B) protons only.
C) electrons
D) electrons and neutrons
E) protons and electrons
  • 6. This type of nuclear reaction refers to the splitting of the atoms.
A) degradation
B) regression
C) half -life
D) Fission
E) fusion
  • 7. How many protons are subtracted from the original atom when bombarded by alpha particles
A) 4 protons
B) 5 protons
C) 3 protons
D) 2 protons
E) 6 protons
  • 8. The decay of uranium by beta particles will produce this kind of element
A) fermium
B) nobelium
C) thorium
D) neptunium
E) the same element
  • 9. Which is not a type of nuclear reaction?
A) alpha decay
B) gamma decay
C) transfer of electrons
D) beta decay
E) positron emission
  • 10. If plutonium will be bombarded by gamma particles, what will happen to plutonium?
A) atomic number will change.
B) Atomic mass will change.
C) Both atomic mass and atomic number will change.
D) atomic number will change, but atomic mass will not change.
E) atomic mass and atomic number remains the same.
  • 11. Which type of radiation has the greatest penetrating power?
A) Beta particle
B) Gamma ray
C) Neutron emission
D) Electron capture
E) Alpha particle
  • 12. The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?
A) 15.8 mg
B) 12.5 mg
C) 15 mg
D) .33 mg
E) 33.0 mg
  • 13. Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
A) 25g
B) 50 mg
C) 0.25g
D) 80g
E) 2.5g
  • 14. What does it mean when an element is radioactive?
A) Atom emits radiation
B) Emits radioactive particles
C) All options listed.
D) Nucleus is unstable due to uneven proton to neutron ratio
E) Nucleus changes to become stable
  • 15. The time taken for half of an amount of radioactive atoms to decay.
A) Zero life
B) Half-life
C) Dead time
D) Nuclear fusion
E) Full-life
  • 16. After the nucleus of a radioactive element undergoes changes, the element can transform into ...
A) Both options listed.
B) Neither option listed.
C) An entirely different element.
D) different isotope of the same element.
  • 17. The process of nuclear change in an atom of radioactive material is called...
A) nuclear decay
B) nuclear mass
C) radon
D) nuclide
E) isotopes
  • 18. Which of the following is an example of nuclear fusion?
A) Two hydrogen atoms bond with an oxygen atom to form a water molecule
B) Two hydrogen atoms are combined to form a helium atom
C) A uranium atom is split apart into lighter elements
D) A plutonium atom is used to start a chain reaction that detonates a nuclear weapon
  • 19. Which type of nuclear radiation is being emitted here?
A) electron capture
B) gamma
C) alpha
D) Beta
E) positron
  • 20. This is an example of...
A) Fission reaction
B) Combustion
C) neutralization
D) fusion reaction
E) decomposition
  • 21. What percentage of rubidium-87 atoms will be left after four half lives?
A) 3.125%
B) 25.0%
C) 6.25%
D) 12.5%
  • 22. What particle completes this reaction?
A) gamma particle
B) neutron
C) alpha particle
D) Beta particle
  • 23. What is the missing isotope that will balance the following nuclear equation? 94Be + 11H → _____ + 42He
A) 10Ne5
B) 10B5
C) 6Li3
D) 6C3
  • 24. Which type of nuclear radiation is being emitted here?
A) alpha
B) gamma
C) Beta decay
D) positron
E) electron capture
  • 25. If we start off with element 50X24 after an alpha decay we get another element Y that looks like
A) 48Y20
B) 54Y26
C) 50Y22
D) 46Y22
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