Periodic Table

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Across
  1. 2. -aknej
  2. 8. -ndl
  3. 10. number- the sum of the number of neutrons and protons in an atomic nucleus.
  4. 13. the smallest component of an element
  5. 14. -aldie
  6. 16. an elementary particle with negative charge.
  7. 18. the positively charged dense center of an atom.
  8. 19. a subatomic particle with zero charge.
  9. 20. -wankjdn
Down
  1. 1. ajsknd
  2. 3. -anjd
  3. 4. ajio
  4. 5. mass
  5. 6. number- quantity of protons in the nucleus of an atom of an element.
  6. 7. -wnda
  7. 9. fusion-awbdjkaw
  8. 11. a stable particle with a positive charge.
  9. 12. a representation of something often on a smaller scale.
  10. 15. gas -abwjdkw
  11. 17. table-huai