Chemistry Study Guide

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Across
  1. 3. what is produced by the reaction
  2. 7. part of an atom with a negative charge
  3. 9. smallest unit of an element
  4. 10. releases energy
  5. 11. cannot be separated, two or more different elements
  6. 13. rows of elements
  7. 15. abbreviation for an element
  8. 16. total amount of atoms in a substance does not change
  9. 19. what you put in the bag
  10. 20. part of an atom with no charge
  11. 24. partially conduct electricity, cross between metal and nonmetal
  12. 25. hard, shiny, malleable, and ductile
  13. 26. a substance that forms our universe
Down
  1. 1. columns of elements, same valence electrons
  2. 2. a group of atoms bounded together
  3. 4. part of an atom with a positive charge
  4. 5. an electron in the outermost orbital
  5. 6. number of protons are nuetrons in an atom
  6. 8. brittle, not malleable, not ductile, and poor conductors
  7. 12. takes in energy
  8. 14. invented the periodic table
  9. 17. number of protons and electrons
  10. 18. path of an electron
  11. 21. center of atom, positive charge, includes protons and electrons
  12. 22. outer coating made of metal
  13. 23. ten valence electrons, do not combine