The Periodic Table

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Across
  1. 1. what is the 1st element
  2. 3. is helium a non metal
  3. 6. what is the element of symbol Ar
  4. 9. what is the symbol of the element silicon
  5. 11. who made periodic table
  6. 13. what is the element of symbol Na
  7. 14. what is the symbol of the element calcium
  8. 15. what is the element of symbol Cl
  9. 16. what is the symbol of element magnesium
  10. 18. what is the symbol of element lithium
  11. 19. what is the element of symbol B
  12. 20. what is the 7th element
  13. 21. how many nonmetal are the
  14. 23. how many metalloid elements are there
  15. 24. what is the 4th element
Down
  1. 2. how many elements are there
  2. 4. what is the element of symbol K
  3. 5. what is the element of symbol F
  4. 7. what is the element of symbol N
  5. 8. what is the element of symbol P
  6. 10. is calcium a metal
  7. 12. how many groups are there in the periodic table
  8. 14. what is the element of symbol C
  9. 17. how many metals are there
  10. 22. is neon a metal