chemistry homework

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Across
  1. 4. all the elements located in this row have a -1 charge
  2. 7. is known to be used in 10 million different compounds
  3. 8. has 79 protons and electrons
  4. 10. is number has 12 protons and electrons
  5. 12. can be used in tooth paste
Down
  1. 1. used in household bleach
  2. 2. located in bannans
  3. 3. vibrant colors
  4. 5. worth 10 cents
  5. 6. you breathe it in
  6. 9. smells like rotten eggs
  7. 11. has mass number of 23