11.02 Nuclear Radiation (1)

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Across
  1. 4. The radioactive rays that is similar to X-rays
  2. 7. Materials that emit nuclear radiation is known to be ______________
  3. 9. An alpha beam is always deflected gradually towards the ____________ plate of an electric field
  4. 13. The ionising effect of the alpha particle is the ____________
  5. 14. The removal or gain of electrons from atoms is known to have an ___________ effect.
  6. 15. The deflection of the alpha and beta particle in a magnetic field can be determined using Fleming’s _______ hand rule.
  7. 16. The disintegration of an unstable nucleus is called a radioactive ________
  8. 17. A beta beam is always deflected rapidly towards the ____________ plate of an electric field
Down
  1. 1. The gamma rays are not deflected by magnetic or electric fields as they are n___________ in charge.
  2. 2. The charge of a beta particle is __________ since it is an electron
  3. 3. The radioactive particle which is an electron
  4. 5. The radioactive particle which has 2 protons and 2 neutrons
  5. 6. The gamma rays is the most _____________ as it cannot be stopped completely
  6. 8. If a living thing under ionization, it can cause mutation or destruction of _________
  7. 10. The speed of gamma rays is the ___________ since it travels at the speed of light
  8. 11. Most radioactive materials are ___________ of an element.
  9. 12. The charge of an alpha particle is __________ since it has 2 protons