Atomic Structure & Periodic Table

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Across
  1. 2. K
  2. 4. Net electric charge
  3. 5. Group 1
  4. 7. 1
  5. 9. C
  6. 10. Plus One
  7. 12. Group 0
  8. 14. 8
Down
  1. 1. Group 7
  2. 3. Zn
  3. 4. Equal number of protons but different number of neutrons
  4. 6. Minus 1
  5. 8. B
  6. 11. Zero
  7. 13. Na