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Radium has weight 226 and a half life of...

Radium has weight 226 and a half life of 1600 years.The umber of diintegerations produced per second from one gram are

A

`4.8 xx 10^(10)`

B

`9.2 xx 10^5`

C

`3.7 xx10^(10)`

D

Zero

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