Chemistry study guide

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Across
  1. 3. thin pieces of metal
  2. 5. smallest part of an element
  3. 6. made of atoms of one kind and can't be separated by chemical reaction
  4. 7. weight of substance
  5. 8. atomic particles in the nucleus of an atom and carries no change
  6. 9. horizontal row on the periodic table
  7. 10. mix of metal and nonmetal
  8. 11. electrons in outer most orbital
  9. 17. atomic particles in the nucleus of an atom and carries a negative charge
  10. 19. atomic particles found in the nucleus of an atom and carries a positive charge
  11. 20. small amount of something
  12. 22. ring or shell
  13. 23. shiny good conductor of heat and electricity
Down
  1. 1. rare gas include helium or neon or argon
  2. 2. center part of an atom made up of protons or neutrons
  3. 4. can't be distorted by a chemical reaction
  4. 5. number of characteristics of element that represents number of proton in the nucleus
  5. 12. absorbed heat
  6. 13. formed with heat
  7. 14. changed when combined with another substance
  8. 15. letter of up to two to sort out the elements
  9. 16. row that goes up and down
  10. 18. brittle not thin or flat can be a liquid
  11. 21. form something with two substances