Physics 2 - Half-Life

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  • Created by: Sash
  • Created on: 22-05-13 20:48

Half-Life

HALF LIFE is the AVERAGE TIME it takes for the NUMBER OF NUCLEI in a RADIOACTIVE ISOTOPE SAMPLE to HALVE

  • Each time a decay happens and an alpha, beta or gamma is given out, it means one more radioactive nucleus has disappeared.
  • Obviously, as the unstable nuclei all steadily disappear, the activity will decrease. So the older a sample becomes, the less radiation it will emit.
  • The problem with trying to…

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