Periodic Table Facts

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Across
  1. 4. Period 2 element found in all living organisms
  2. 5. transition metal so important to toolmaking that an Age is named for it.
  3. 7. transition metal used in coins, pipes, and wiring
  4. 8. The ion form of this alkali metal powers your smartphone
  5. 9. most elements exist in this phase on Earth
  6. 11. noble gas used in balloons
  7. 12. noble gas in the second period
  8. 14. smelly non-metal found in the oxygen group
  9. 17. poisonous halogen used as a chemical warfare agent in WWI
  10. 18. highly flammable alkaline earth metal
Down
  1. 1. Period 3 metal holding your favorite soda
  2. 2. only Group 1 element that isn't a metal
  3. 3. Bananas are rich in this alkali metal
  4. 6. a liquid halogen
  5. 10. transition metal used in hip implants and body piercings
  6. 13. Superman's noble gas?
  7. 15. metalloid found in computer chips that has similar reactivity to carbon
  8. 16. highly reactive halogen found as an ion in toothpaste