Which statement below correctly explains what is happening to the number of parent and daughter atoms with each half-life?

a
For each half-life, the number of parent atoms decrease while the number of daughter atoms increase.
b
For each half-life, the number of parent atoms decrease and the number of daughter atoms decrease.
c
For each half-life, the number of parent atoms increase and the number of daughter atoms increase.
d
For each half-life, the number of parent atoms increase while the number of daughter atoms decrease.

1 answer

a) For each half-life, the number of parent atoms decrease while the number of daughter atoms increase.