The amount of time it takes for one-half of the original amount of an isotope to decay is known as its

Question

asked Oct 6, 2018 136k views

2 Answers

Richard Ansell · Answer 1 · 2018-10-08T02:48:42+0000

Half-life.

To discover the speed of an decaying isotope is to discover how long it takes for half of the atoms to decay, thus it's called Half-life.

Arindam Roychowdhury · Answer 2 · 2018-10-12T10:46:07+0000

Answer : The amount of time it takes for one-half of the original amount of an isotope to decay is known as its Half life.

Step-by-step explanation:

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

All radioactive decays follow first order kinetics.

The relation between the half-life and rate constant is:

k=(0.693)/(t_(1/2))

The half-life of the radioactive isotope is remains the same that means a constant value and it is not affected by any external conditions.

Thus, the amount of time it takes for one-half of the original amount of an isotope to decay is known as its Half life.