Atoms and Elements 2022

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Across
  1. 4. He
  2. 5. 10
  3. 7. Ca
  4. 9. type of charge that an electron has
  5. 11. 3
  6. 12. Na
  7. 13. 29
  8. 14. Au
  9. 17. Fe
  10. 19. Mg
  11. 21. O
  12. 22. C
Down
  1. 1. 13
  2. 2. K
  3. 3. 47
  4. 6. part of an atom where the protons and neutrons are found
  5. 8. N
  6. 9. subatomic particle with no charge
  7. 10. subatomic particle with a negative charge
  8. 15. subatomic particle with a positive charge
  9. 16. Pb
  10. 18. Zn
  11. 20. H