how long will a radioactive isotope decay?\no until it reaches its half - life\no until there is no more…

how long will a radioactive isotope decay?\no until it reaches its half - life\no until there is no more material\no until it becomes a different, stable element\no until the neutrons are returned to the base element level
Answer
Answer:
C. until it becomes a different, stable element
Brief Explanations:
Radioactive isotopes decay by emitting radiation to transform into a different, stable element. Half - life is a time measure during decay, not the end - point. Decay doesn't stop when no more material exists in a common sense as it transforms. Returning neutrons to a base level isn't the decay end - goal.