CBSE Class 9 Answered
what is radio-activity?
Asked by | 26 Jul, 2008, 09:17: PM
Expert Answer
The property of an element to emit rays which would produce detectable effect on photographic plates and possess high penetrating power is called radioactivity. Eg. Uranium , radium.
Answered by | 26 Jul, 2008, 11:36: PM
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