The time needed for half of the parent atoms of a radioactive substance to decay into daughter atoms is termed the_________________ .
A)numerical age
B)relative age
C)isotopic age
D)half-life

Question

Quizplus · Accepted Answer

The time needed for half of the parent atoms of a radioactive substance to decay into daughter atoms is called the half-life. This term is commonly used in radiometric dating and is an important concept in determining the age of rocks and other geological materials. The other options (A, B, and C) are not accurate descriptions of this particular concept.

The Time Needed for Half of the Parent Atoms of a Radioactive