Plutonium

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Across
  1. 4. what would you call plutonium
  2. 5. Number of neutrons
  3. 6. elements it becomes...
  4. 7. Periodic table abbreviation
  5. 8. atomic mass
  6. 9. dangerous
  7. 12. Discovery date
  8. 13. Another word to describe Plutonium
  9. 14. The color of Plutonium
Down
  1. 1. electron configuration
  2. 2. what could plutonium be considered
  3. 3. Worlds most dangerous element
  4. 10. atomic number
  5. 11. Number of protons
  6. 15. When plutonium comes into contact with