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Ninth Grade (Grade 9) Nuclear Chemistry Questions

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Grade 9 Nuclear Chemistry
Uranium causes what?
  1. "fission" to occur when hit with neutrons
  2. "fusion" to occur when hit with neutrons
  3. "evaporation" to occur when hit with a proton
  4. "evaporation" to occur when hit with an electron
Grade 9 Nuclear Chemistry
In nuclear fission, mass is transformed into                .
  1. gravity
  2. velocity
  3. energy
  4. matter
Grade 9 Nuclear Chemistry
Where do nuclear fusion and nuclear fission reactions occur naturally?
  1. in the stars and the Moon
  2. in the Sun and the Moon
  3. in the stars and the Sun
  4. in the Moon and the Sun
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
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