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Nuclear Chemistry Questions - All Grades

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Grade 10 Nuclear Chemistry
Which nuclear emission involves the release of helium nuclei?
  1. alpha
  2. gamma
  3. positron
  4. beta
Grade 9 Nuclear Chemistry
How old is an artifact, if four half-lives have occurred and the half-life of carbon-14 is 5,730 years?
  1. 22,810 years old
  2. 22,950 years old
  3. 50 years old
  4. 22,920 years old
Grade 8 Nuclear Chemistry
What element half life is used to find the age of dinosaur fossils?
  1. Carbon-14
  2. Uranium-238
  3. Oxygen-21
  4. Potassium-40
Grade 11 Nuclear Chemistry
When a nuclide is considered unstable, what generally occurs as a result?
  1. The nuclide undergoes spontaneous decay.
  2. The nuclide undergoes nonspontaneous decay.
  3. The nuclide undergoes combustion.
  4. The nuclide undergoes decomposition.
Grade 10 Nuclear Chemistry
How many years have passed if 25 grams of an original 100.0-gram sample of Sr-90 remains unchanged?
  1. 58.2 years
  2. 87.3 years
  3. 29.1 years
  4. 116.4 years
Grade 10 Nuclear Chemistry
Which of the following particles was repelled by the nucleus in the gold foil experiment?
  1. beta particles
  2. gamma particles
  3. positrons
  4. alpha particles
Grade 10 Nuclear Chemistry
Which of the following nuclides can be used to date the remains of a dead organism?
  1. Lead-206
  2. Uranium-235
  3. Carbon-14
  4. Iodine-131
Grade 8 Nuclear Chemistry
The three forms of radiation have different abilites to penetrate matter due to their
  1. different energy levels.
  2. distances they are able to travel.
  3. mass and charge.
  4. rates of decay.
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