Nuclear Radiation

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Across
  1. 2. This type of radiation travels as a wave.
  2. 4. A different form of an element is known as an _________
  3. 5. The time taken for a radioactive element to decay by half.
  4. 6. Beta radiation can be stopped by this.
  5. 8. How can we use radiation to find out the age of dead material?
  6. 10. A radioactive element.
  7. 11. This type of radiation travels as an electron.
Down
  1. 1. Alpha radiation can be stopped by this.
  2. 2. This piece of equipment is used to detect levels of radiation.
  3. 3. Gamma radiation can be stopped by this.
  4. 7. All radioactive atoms have an ___________ nucleus.
  5. 9. This type of radiation is a helium nucleus.