define radioactive decay of a radioactive subastance.?

Asked by  | 7th Sep, 2008, 12:01: AM

Expert Answer:

The property of an element to emit rays which could produce detectable effect on photographic plates and possess high penetrating power is called radiactive decay of a radioactive element.This happens when the element becomes unstable.

Answered by  | 7th Sep, 2008, 12:38: AM

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