Chemistry

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Across
  1. 1. protons + neutrons = atomic ______
  2. 5. atomic ______
  3. 8. an equation that represents what happens in a chemical reaction is called a chemical ______
  4. 9. type of change in which there is a rearrangement of molecules
  5. 12. inspiration for the periodic table
  6. 14. the purest substances that can be found
  7. 15. elements in the periodic table with 8 valence electrons that do not react easily and are stable
  8. 16. 6.022*10^23 particles is who's number?
  9. 17. compounds that have an ionic bond form this
  10. 18. elements chemically bonded with either an ionic, covalent, or metallic bond
Down
  1. 1. the scientist that developed the periodic table
  2. 2. type of formula that tells you the exact amount of atoms in a molecula
  3. 3. gold's name in latin
  4. 4. compound with only non metals
  5. 6. compound with both metals and non metals
  6. 7. t-shirt color that teachers bring on Friday
  7. 10. compound with only metals
  8. 11. field of science that studies the behaviour of substances
  9. 13. type of formula that tells you the ratio of the atoms in a crystal