Periodic Table Elements

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Across
  1. 3. a chemical element with the symbol C
  2. 6. atomic number 1
  3. 7. the thirteenth and third-last element
  4. 8. the symbol Te and atomic number 5
  5. 10. the most common element on Earth
  6. 11. the symbol Fm and atomic number 1
  7. 12. rare-earth element with a metallic silver luster
  8. 13. soft silvery white high;y reactive metal
  9. 16. group 18 of the periodic table and is a noble gas
  10. 17. a colorless, odorless, tasteless noble gas
  11. 18. a soft, silvery metal at standard temperature
Down
  1. 1. the symbol Cl and atomic number 17
  2. 2. the sixth element in group 2 of the periodic table
  3. 4. the most abundant metallic element in Earth's crust
  4. 5. atomic number 71
  5. 6. the first in the noble gas group in the periodic table
  6. 9. atomic number 12
  7. 14. member of the the chalcogen group, symbol O
  8. 15. 92 protons and 92 electrons, of which 6 electrons