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A raioactive sample contains 2.2 mg of p...

A raioactive sample contains `2.2 mg` of pure `._(6)^(11)C` which has half-life period of `1224` seconds. Calculate
(i) the number of atoms present initially
(ii) the activity when `5 mu g` of the sample will be left.

A

`2.1xx106(20)" atoms, "3.3xx10^(-14)" dps"`

B

`3.1xx106(19)" atoms, "2.6xx10^(13)" dps"`

C

`2.3xx106(19)" atoms, "1.6xx10^(13)" dps"`

D

`1.2xx10^(20)" atoms, "1.55xx10^(14)" dps"`

Text Solution

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The correct Answer is:
D
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