periodic table

12345678910111213141516171819202122
Across
  1. 1. the atomic weight is 19
  2. 5. N
  3. 7. I have 6 neutrons in group 14
  4. 10. my atomic number is 111
  5. 12. I have 16 neutrons in group 15
  6. 14. 18,1
  7. 15. Sn
  8. 16. Ne
  9. 17. I have 55 protons
  10. 18. 17,4
  11. 21. I have 27 protons
Down
  1. 1. a row is called
  2. 2. I have 26 electrons
  3. 3. 15,2
  4. 4. uncharged atomic particle that has a mass nearly equal to that of a proton and is present in all known atomic nuclei except the hydrogen nucleis
  5. 6. a column in a periodic table is called
  6. 8. As
  7. 9. a small, positively charged particle of matter found in the atoms of all element
  8. 11. Ag
  9. 13. I have 8 neutrons in group 16
  10. 19. Hg
  11. 20. Au
  12. 22. I have 6 neutrons in group 13