Structure of Matter

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Across
  1. 2. the name for the chemical formula NH3
  2. 5. the name for the chemical formula H2O
  3. 6. type of bond that forms from transferring electrons.
  4. 7. atomic number 20 on your periodic table
  5. 9. a substance made of more than one element
  6. 11. type of bond that forms from sharing electrons.
  7. 12. name for the guy that came up with the dot diagrams.
  8. 13. the name for the chemical formula CH4
  9. 15. the chemical formula for table salt.
  10. 17. a group of atoms bonded together
Down
  1. 1. the number of valence electrons in Argon.
  2. 3. shows what something looks like.
  3. 4. atoms want a _____ outer-energy level.
  4. 8. an atom with a negative charge.
  5. 9. an atom with a positive charge.
  6. 10. a combination of one or more pure substances
  7. 14. the name for the elements in group 17
  8. 16. the electrons in the outer-most energy level