Unit 3: The Atom

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Across
  1. 2. neutrally charged subatomic particle
  2. 4. charge on an atom that has gained electrons
  3. 7. positively charged subatomic particle
  4. 8. an atom that has a different number of neutrons
  5. 10. the electron ______ is the part of the atom where electrons are found
  6. 11. electrons found in the outermost energy level of an atom
  7. 12. ______ level is the term for the rings around a Bohr Model where electrons are found
  8. 14. part of the atom where protons and neutrons are found
  9. 15. ______ number is equal to the number of protons plus the number of neutrons
Down
  1. 1. charge on an atom that has lost electrons
  2. 3. rows on the periodic table that tell us the number of rings on a model
  3. 5. ______ number is equal to the number of protons found in an atom
  4. 6. negatively charged subatomic particle
  5. 9. a charged atom that has a different number of electrons than protons
  6. 13. columns on the periodic table that tell us the number of valence electrons