Maddie Smith - Chapter 9 Atomic Structure

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Across
  1. 4. any of the possible energies an electron may have in an atom
  2. 5. sometimes called the wave model
  3. 6. are often used for things that are too smaller too large to be observed or that are too difficult to be understood easily
  4. 8. equal to the number of proton plus neutron
  5. 9. number number of protons
  6. 10. have a positive charge
Down
  1. 1. have a negative electrical charge
  2. 2. number of protons equals the number of electrons
  3. 3. an electron in the outermost energy level of an atom
  4. 7. have no electrical charge