Evan A. Crossword

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Across
  1. 4. distance between points on a continuous wave.
  2. 5. amount of energy gained or lost by an atom.
  3. 6. atom with a positive or negative charge.
  4. 9. charged.
Down
  1. 1. A equation that shows the atomic number,mass number and sublevel
  2. 2. substances spontaneously emit radiation.
  3. 3. has a negative charge.
  4. 7. that are emitted by radioactive-tive materials.
  5. 8. electromagnetic radiation with no mass that is a quantum of energy.
  6. 10. particle with two protons and two neutrons.