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