crosword

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Across
  1. 2. Alpha radiation can be stopped by what
  2. 3. Alpha radiation causes the mass number to decrease by how much
  3. 5. Nuclear radiation is the break down of what
  4. 7. what type of radiation has the greatest penetration
  5. 9. Hat is the name for an atom with a varying number of neutrons
  6. 10. Neutrons have a type of charge
  7. 11. In beta radiation one neutral turns into a proton and an
  8. 12. electrons have a negative charge
Down
  1. 1. Neutrons have a type of charge
  2. 4. For radiation to occur the nucleus must be
  3. 6. If a nucleus is constantly decaying we call it this
  4. 8. The large number next to an element on the periodic table is called the
  5. 10. Alpha radiation is made up of 2 neutrons and 2 what