Q. When a nucleus with atomic number and mass number undergoes a radioactive decay process :

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A

Both and will decrease, if the process is decay

B

will decrease but will not change, if the process is decay

C

will increase but will not change, if the process is decay

D

and will remain unchanged, if the process is decay

Solution:

In -decay nuclear charge decreases by a factor of and mass decreases by a factor of and in -decay no effect is there on the mass of nucleus but charge increases or decreases by a factor of and in case of -decay no change will be there on charge or mass.

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