Periodic table of elements

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Across
  1. 2. Heaviest metal in the world
  2. 3. Second Lightest on the table
  3. 5. Right of staristep of line
  4. 7. Makes your bones stronger, found in milk
  5. 9. Determine the atomic number
  6. 11. Heaviest element
  7. 14. Mass Determines where the elements go
  8. 16. Most abundant element on earth
  9. 18. Only metal in a liquid state at room temp
  10. 19. Lightest element
  11. 20. has 82 protons
Down
  1. 1. Most expensive element on the table
  2. 4. Used in nuclear reactors
  3. 6. Outer most electrons on the orbital
  4. 8. Left of the stair step line
  5. 10. has an element number of 26
  6. 12. Make up the stair step line
  7. 13. Used in neon signs
  8. 15. a high percentage of living things are made up of this element
  9. 17. commonly found in jewelry