The Periodic Table

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Across
  1. 2. What word tells us 3 each kind of atom bonded together.
  2. 8. Name of the element with the symbol Cl.
  3. 9. which element is discovered first.
  4. 11. What 2 elements are combined in sodium chloride.
  5. 13. What is the last element in periodic table.
  6. 14. Non metal element that have greatest mass in first 20 elements.
  7. 15. What is 74th element in periodic table.
  8. 16. Which element has the smallest mass.
  9. 17. Name of the element with the symbol Si.
  10. 19. Which side of the periodic table are nonmetals.
Down
  1. 1. Who made periodic table.
  2. 3. What is the 22nd element.
  3. 4. Name of the element in the same period as oxygen.
  4. 5. what element is most common on earth.
  5. 6. what is the most rarest element on the world. symbolic name is At 85th element
  6. 7. What 3 elements are combined in lithium sulfate. (symbol)
  7. 10. What is the 8th element.
  8. 12. Atoms with the greatest mass in the first 20 elements.
  9. 18. Name of the element with the symbol C.
  10. 20. What is called columns in the periodic table.