Which one of the following decreases over time?Group of answer choicesthe decay ratethe number of parent atomsthe number of daughter atomsthe length of a half-life
Question
Which one of the following decreases over time?Group of answer choicesthe decay ratethe number of parent atomsthe number of daughter atomsthe length of a half-life
Solution
The number of parent atoms decreases over time. Here's why:
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In radioactive decay, parent atoms are the atoms that undergo decay.
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Over time, these parent atoms decay into daughter atoms.
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As each parent atom decays, the number of parent atoms decreases.
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Therefore, over time, the number of parent atoms decreases.
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