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Let N(beta) be the number of beta partic...

Let `N_(beta)` be the number of `beta` particle emitted by 1 gram of `Na^(24)` radioactive nuclei hving a half life of `15 h`. In 7.5h, the number `N_(beta)` is close to
`[N_A = 6.023 xx 10^23 "mole"^(-1)]`

A

`1.75 xx10^(22)`

B

`1.25 xx10^(22)`

C

`7.5 xx10^(21)`

D

`6.2 xx10^(21)`

Text Solution

Verified by Experts

The correct Answer is:
A
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