Chemical bond explorer

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Across
  1. 3. full valence shell
  2. 5. building blocks
  3. 6. giving electron
  4. 7. links
  5. 9. no electrical charge
  6. 10. change in identity
Down
  1. 1. unequally distributed
  2. 2. sharing electrons
  3. 4. compound number
  4. 8. atoms held together