Question

The half-life of a radioisotope is The half-life of a radioisotope is the time it takes for the radioisotope to become an isotope with one-half the atomic number of the original radioisotope. one-half of the time it takes for the radioisotope to completely decay to a nonradioactive isotope. the time it takes for one-half of the sample to decay. the time it takes for the radioisotope to become an isotope with one-half of the atomic weight of the original radioisotope. the time it takes for the radioisotope to lose one-half of its neutrons.

Answer 1

The time it takes for the radioisotope to lose one-half of its neutrons

Step-by-step explanation:

Answer 2

Answer: the time it takes for one-half of the sample to decay.

Step-by-step 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
`t_{(1)/(2)`

`t_{(1)/(2)=(0.693)/(\lambda)`

`\lambda` = rate constant

Thus the half-life of a radioisotope is the time it takes for one-half of the sample to decay.