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What happens to the mass number and atom...

What happens to the mass number and atomic number of an element when it emits gamma- radiation

A

mass number decreases by 4 and atomic number decreases by 2

B

mass number and atomic number remain unchanged

C

mass number remains unchanged while atomic no. decreases by 1

D

mass number increases by 4 and atomic number increases by 2

Text Solution

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The correct Answer is:
B
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