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Physics

The correct representation of γ emission is :
$_{Z}^{A}\text{P} \longrightarrow \space _{Z-1}^{ \space \space \space \space \space A}\text{Q} + γ$
$_{Z}^{A}\text{P} \longrightarrow \space _{Z-2}^{A-4}\text{Q} + \space _{2}^{4}γ$
$_{Z}^{A}\text{P} \longrightarrow \space _{Z}^{A}\text{P} + γ$
$_{Z}^{A}\text{P} \longrightarrow \space _{Z-1}^{A}\text{P} + γ$

Radioactivity

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Answer

$_{Z}^{A}\text{P} \longrightarrow \space _{Z}^{A}\text{P} + γ$

Reason — The correct representation of γ emission is:

$_{Z}^{A}\text{P} \longrightarrow \space _{Z}^{A}\text{P} + γ$

This represents a gamma (γ) decay, where there is no change in mass number A and atomic number Z of the nucleus.

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