Hunter vaculik

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Across
  1. 4. results from radiotactive decay
  2. 6. half of its life time is called
  3. 7. an ejected electron from a neutron
Down
  1. 1. high energy particles
  2. 2. Alpha carrys what charge
  3. 3. Gamma carrys what charge
  4. 5. Beta caryys what charge