First slide

Composition of Nucleus

Question

In the nuclear reaction
$_{2} H e^{4} +_{Z} H e^{A} \overset{}{\to}_{Z + 2} Y^{A + 3} +_{Z^{'}} M^{A^{'}}$
M denotes

Easy

A

electron
B

position
C

proton
D

neutron

Solution

(4)
Applying charge and mass conservation
$\begin{array}{l} 4 + A = A + 3 + A^{'} \Rightarrow A^{'} = 1. \\ 2 + Z = Z + 2 + Z^{'} \Rightarrow Z^{'} = 0 \end{array}$
Hence, M is neutron.

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