Nuclear Chemistry

12345678910111213
Across
  1. 6. - The central part of an atom that contains the protons and neutrons.
  2. 8. - The process by which unstable atomic nuclei lose energy by emitting radiation.
  3. 10. - The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
  4. 12. Reaction - A self-sustaining reaction in which the products of one reaction event stimulate further reaction events.
Down
  1. 1. - The time required for half of a sample of a radioactive substance to undergo decay.
  2. 2. - Relating to the nucleus of an atom.
  3. 3. - A subatomic particle with no charge, found in the nucleus of an atom.
  4. 4. - The splitting of a heavy nucleus into two lighter nuclei.
  5. 5. - A type of radiation consisting of beta particles emitted by some radioactive substances.
  6. 7. - A type of electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength.
  7. 9. - A type of radiation consisting of alpha particles emitted by some substances undergoing radioactive decay.
  8. 11. - The process by which an unstable atomic nucleus loses energy by emitting radiation.
  9. 13. - Atoms of the same element that have different numbers of neutrons.