The knowledge of half-life can be used to?

A. Create an element
B. Detect an element
C. Split an element
D. Irradiate an element

Correct Answer:

Option B – Detect an element

Explanation

Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of radioactive material to decrease by one-half