Periodic Table

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12345678910111213141516171819
Across
  1. 6. The block that contains both Lithium and Radium
  2. 8. The only element with an atomic number over ninety-eight that starts with a C
  3. 9. The number of groups in the periodic table
  4. 11. The letter representation of every element on the periodic table
  5. 12. The variety of metals that are better at conducting heat and electricity
  6. 13. The name for group seventeen of the periodic table
  7. 14. The type of electron found in the outermost energy ring of an atom
  8. 16. The element that makes up most of Earth's atmosphere
  9. 17. The name for the upper right section of the periodic table
  10. 18. Group three, three valence electrons
  11. 19. The horizontal organization of the periodic table
Down
  1. 1. The type of atom including Silicon, Germanium, and Arsenic tsymbol
  2. 2. An element with two valence electrons in the sixth period
  3. 3. Number of protons in an atom
  4. 4. The element with the highest possible atomic number
  5. 5. The only element with an atomic number that repeats three times
  6. 7. Noble gas in period one
  7. 10. The elements found in the rightmost period of the periodic table
  8. 15. The only element in the F block with a one-letter chemical symbol
  9. 18. Bottom number in each square of the periodic table