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Question

A gamma ray is emitted from the nucleus of an unstable atom. Find out the result of this reaction?

A
The number of electrons decreases
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B
The number of electrons increases
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C
The number of electrons remains same
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D
The mass of the nucleus decreases
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E
The mass of the nucleus remains the same
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Solution

The correct option is D The mass of the nucleus remains the same
When a gamma ray is emitted from the nucleus of an unstable atom, the unstable atom becomes stable. Thus number of electrons , neutrons and mass will remain same. The nuclear reaction will be XX+γ

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