Elements

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Across
  1. 2. can bond with themselves
  2. 3. the number of protons
  3. 5. abbreviation of elements
  4. 7. a positively charged particle
  5. 9. two or more substances together that are not chemically combined
  6. 10. combined number of protons and neutrons
Down
  1. 1. have 7 outer electrons
  2. 4. positively charged particle
  3. 6. shows signs of both metals and nonmetal
  4. 8. neutraly charge partical