Ionising Radiation

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Across
  1. 4. Prolonged exposure to gamma rays, xrays or ultraviolet light can be ...
  2. 7. Gamma rays and Xrays are very high energy electromagnetic waves. They have a short wavelength and a high...
  3. 9. What type of radiation is made of two protons and two neutrons?
  4. 11. Radio waves, microwaves, infrared and visible light are all examples of what type of radiation?
  5. 12. Alpha particles are said to be the most .... type of radiation.
Down
  1. 1. What type of radiation is made of high energy electrons?
  2. 2. What type of radiation is made of high energy electromagnetic waves?
  3. 3. What is the name of the spectrum that includes radio waves, microwaves and visible light?
  4. 5. This type of electromagnetic radiation is often used to examine bones.
  5. 6. To stop gamma rays you need 10cm of thick...
  6. 8. Alpha particles can be stopped by a sheet of...
  7. 10. What is the name for atoms that have become charged?