Question

define Half-Life or half time of a radioactive sample

Answer 1

HALF LIFE OF RADIOACTIVE ELEMENT


It is the time in which half of the parent nuclei decay into daughter nuclei.

Answer 2

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