The amount of time it takes for an amount of a specific isotope to decay to half the original amount.
a. absolute-life c. half-life b. relative-life d. specific-life select the best answer from the choices provided

a
b
c
d

C. half life

Explanation:-  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

Radioactive decay process is a type of process in which a less stable nuclei decomposes to a stable nuclei by releasing some radiations or particles like alpha, beta particles or gamma-radiations. The radioactive decay follows first order kinetics.

Half life is represented by

= rate constant