define Half-Life or half time of a radioactive sample
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HALF LIFE OF RADIOACTIVE ELEMENT
It is the time in which half of the parent nuclei decay into daughter nuclei.
It is the time in which half of the parent nuclei decay into daughter nuclei.
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The terms half-life and mean or average life are both factors pertaining to radioactive decay. The half-life (T½) of a radioactive substance is defined as the time required for either the radioactivity or the number of radioactive atoms to decay to half of the initial value
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