Nuclear Energy

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Across
  1. 3. how much an element weighs
  2. 7. a charged particle that is emitted during a beta type radioactive decay
  3. 9. a process when one action takes place and repeats itself onto something else
  4. 10. a particle contain 2 protons and 2 neutrons
  5. 12. the middle of an atom and contains neutrons and protons, positively charged
  6. 13. the amount of time that passes after a element decays by 50%
  7. 14. the number assigned to a specific element, that same number is the amount of protons in the element
Down
  1. 1. a ray emitted from the atom during the process, it is the most harmful
  2. 2. an element that has a different mass than the original element
  3. 4. when certain substances emit radiation
  4. 5. a subatomic particle that lies within the nucleus, it has a positive charge
  5. 6. when the nucleus of an atom splits
  6. 8. a subatomic particle within the nucleus, neutral or no charge
  7. 11. when the nucleus of an atom combines with another