Subatomic Particle Practice / Periodic Table

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Across
  1. 6. Has a symbol of Kr.
  2. 8. The element that our lungs need to breathe.
  3. 9. Has a symbol of Ts.
  4. 10. Has an atomic mass of 196.97.
  5. 12. Has 47 protons.
  6. 15. Has 76 protons.
  7. 18. Has an atomic mass of 69.72.
  8. 19. Has an atomic number of 32.
  9. 20. Has a symbol of Cd.
  10. 24. Has 10 protons, neutrons, and electrons.
  11. 26. The 13th element on the Periodic Table.
  12. 29. Has a mass number of 65
  13. 32. Has an atomic mass of 91.22.
  14. 33. Has 14 protons, neutrons, and electrons.
  15. 34. Has a symbol of Tl.
  16. 35. Has a symbol of Na.
  17. 37. Has 38 protons and 38 electrons.
  18. 39. Has a symbol of S.
  19. 40. Has 15 protons.
  20. 42. Has an atomic number of 87.
  21. 44. Would have only 2 electrons if the atom had a +1 charge.
  22. 45. Has a symbol of Pt.
Down
  1. 1. Would have 18 electrons if the atom had a -1 charge.
  2. 2. Has 5 protons.
  3. 3. Has a symbol of Br.
  4. 4. Has 23 electrons in a neutral atom.
  5. 5. Has a symbol of H.
  6. 7. The second element on the Periodic Table.
  7. 11. Has a symbol of Pb.
  8. 13. Has a symbol of Rb.
  9. 14. has a symbol of Rn.
  10. 16. Has a symbol of Mg.
  11. 17. Has a symbol of Ti.
  12. 21. Has a symbol of Te.
  13. 22. The main element that make your teeth and bones strong.
  14. 23. Has 9 protons and 10 neutrons.
  15. 25. Has an atomic mass of 178.49.
  16. 27. Has a symbol of Hg.
  17. 28. Has an atomic mass of 180.95.
  18. 30. Has a mass number of 52.
  19. 31. Has a symbol of Sn.
  20. 36. Atomic number 29.
  21. 38. Has 53 electrons in a neutral atom.
  22. 41. Has a symbol of W.
  23. 43. Has 83 protons.