If an isotope's half-life is 100 years,then
A) that isotope will no longer exist in 50 years.
B) that isotope will no longer exist in 200 years.
C) in 50 years only half of the atoms in a sample of that isotope will remain.
D) in 100 years only half of the atoms in a sample of that isotope will remain.
E) in 200 years only half of the atoms in a sample of that isotope will remain

Question

Quizplus · Accepted Answer

The half-life of an isotope is the time needed for half of the isotope to decay.

If an Isotope's Half-Life Is 100 Years,then