Nuclear Blast

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. An elementary particle with 0 charge and mass about equal to a proton (7)
  2. 7. Radioactive ___ of an atomic nucleus that is accompanied by the emission of a ___ particle (9)
  3. 10. The order of an element in Mendeleyev's table of the elements (12)
  4. 12. The change of one chemical element into another (13)
  5. 14. A hard ferromagnetic silver-white bivalent or trivalent metallic element (6)
  6. 15. An investigator who is employed to find missing persons or missing goods (6)

Down

  1. 1. The condition of being dissociated into ions (10)
  2. 2. The ___ released by a ___ reaction (13)
  3. 3. Center of an atom or a cell (7)
  4. 4. The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay (13)
  5. 5. An intensely radioactive metallic element that occurs in minute amounts in uranium ores (6)
  6. 6. An elementary particle with negative charge (8)
  7. 8. Radioactive ___ of an atomic nucleus that is accompanied by the emission of an ___ particle (10)
  8. 9. A colorless element that is one of the six inert gasses (7)
  9. 11. One of two or more atoms with the same atomic number but with different numbers of neutrons (plural) (8)
  10. 13. A heavy toxic silvery-white radioactive metallic element (7)