Ben Thomson

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Across
  1. 5. products of radioactive decay
  2. 6. charged atom
  3. 9. radiation of the shortest wavelength
  4. 10. consisting of two protons and two neutrons
  5. 11. a quantum of light
Down
  1. 1. energies associated with electrons
  2. 2. single packet of energy
  3. 3. number of times a point is passed
  4. 4. located in the outermost shell
  5. 7. you can call it electromagnetic waves
  6. 8. distance between any point