Periodic Table Crossword

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Across
  1. 3. Makes up around 21% of the Earth's atmosphere.
  2. 4. A bright yellow element, known in the Bible as "brimstone."
  3. 6. This element does not oxidize
  4. 8. The most reflective metal.
  5. 10. Was the first metal to be worked by man, along with gold and meteoritic iron.
  6. 11. Has 92 protons and 92 electrons
  7. 12. It's Twice as Strong as Aluminum.
  8. 14. The thirteenth most abundant element in the earth's crust
  9. 16. Name comes from the Latin word carbo, which means "coal."
  10. 17. Symbol is Fe.
  11. 18. Atomic number: 31.
  12. 20. Is the third most abundant element in the Earth's oceans.
Down
  1. 1. The second lightest (least dense) metal after lithium.
  2. 2. The only element that can exist without neurons.
  3. 5. Comes from the Spanish word, platina, which means “little silver”.
  4. 7. Has the smallest temperature range
  5. 9. Named after Albert Einstein
  6. 13. Keeps food fresh.
  7. 15. Named after the Greek word nitron, for "native soda," and genes for "forming."
  8. 19. The most abundant noble gas