Chemistry Unit Study guide

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Across
  1. 2. th mass of an atom
  2. 4. cannot be chemically interconnected or broken down
  3. 7. The outermost electron
  4. 9. it's the powerhouse of the atom
  5. 11. has a positive charge
Down
  1. 1. Created the periodic table
  2. 3. The pattern of an atom
  3. 5. the number of protons in an atom
  4. 6. Makes up matter
  5. 8. has a negative charge
  6. 10. H2o