Unit 2 Crossword Puzzle Madeleine Walker

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Across
  1. 2. is the distance in the line of a wave
  2. 7. a negatively charged ion
  3. 8. most energy of any wave
  4. 9. is the number of occurrences
  5. 11. is the act of emitting radiation
Down
  1. 1. the lowest energy state of an atom
  2. 3. a high-speed electron
  3. 4. a charged atom or molecule
  4. 5. a particle of light
  5. 6. energy in the form of waves or particles
  6. 10. a positively charged ion