Periodic Table

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12345678910111213141516171819202122232425
Across
  1. 3. element used in cleaning cuts, wounds
  2. 9. number of protons in an atom
  3. 11. has a positive charge
  4. 12. where electrons are found
  5. 14. element found in soda cans
  6. 17. element found in toothpaste
  7. 18. element essential for all living things
  8. 20. element found in bananas
  9. 22. has a neutral charge
  10. 23. where protons and neutrons are found
  11. 25. element that has four neutrons
Down
  1. 1. has atomic number of seven
  2. 2. is the lightest element
  3. 4. element used in electrical wiring
  4. 5. has six neutrons
  5. 6. element used in store opening/closing signs
  6. 7. key element found in salt
  7. 8. atomic _______is the sum of protons and neutrons
  8. 10. used to help have strong bones and teeth
  9. 13. atomic number of helium
  10. 15. element symbol is Fe
  11. 16. has element symbol of Mg
  12. 19. yellow metal used in jewerly
  13. 21. a proton has a mass of _____amu
  14. 22. has element symbol of Ni
  15. 24. has a negative charge