What is radioactive half life?

Question asked by: mrquestion

Asked on: 04 Feb 2010

Radioactive half life refers to the time that it takes for half of a material to decay from its existing form to something else.

Let's say that you have a radium isotope that decays into something else with a half life of a year (just making up figures here to illustrate the point).

Then after a year you would expect there to be half the amount of radium there was in the first place, because half of it will have turned into a more stable configuration.
By: knowitall
Replied at: 04 Feb 2010
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