All Things Atom

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Across
  1. 3. number of protons in the atom
  2. 5. located in the center of an atom
  3. 6. Sum of all the protons and neutrons in the nucleus
  4. 9. found in the outermost shell of the electron cloud
  5. 12. Created the "Plum Pudding" model of the atom
  6. 13. Electrons are organized in blank outside of the nucleus
  7. 14. Subatomic particle with a negative charge
Down
  1. 1. Subatomic particle with a positive charge
  2. 2. Surrounds the nucleus
  3. 4. Had the idea that atoms couldn't be created nor destroyed
  4. 7. and atom with a charge
  5. 8. Created the circle model of the atom
  6. 10. Another name for Avogadro's number
  7. 11. Created the modern model of the atom
  8. 15. Subatomic particle with no charge