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Question

23Na is the more stable isotope of Na. By which process 2411Na can undergo radioactive decay?

A
βemission
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B
αemission
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C
β+emission
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D
None of these
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Solution

The correct option is D None of these
To convert 2411Na to 2311Na, we need to decrease the mass number of 2411Na by 1.
Since, in β emission and β+ emission, the mass number of product nucleus is same as that of parent nucleus.
Whereas, in α emission, the mass number of product nucleus gets decreased by 4 compared to that of parent nucleus.
Thus 2411Na cannot undergo any of the radioactive decay to convert into 2311Na.

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