In nuclear reaction ${ }_2 H e^4+{

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Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

In nuclear reaction ${ }_2 H e^4+{ }_z X^A \rightarrow{ }_{z+2} Y^{A+3}+A, A$ denotes

Options:

Electron

Positron

Proton

Neutron

Correct Answer:

Neutron

Explanation:

The given equation is ${ }_2 H e^4+{ }_z X^A \rightarrow{ }_{z+2} Y^{A+3}+A, A$

Applying charge and mass conservation

4 + A = A + 3 + x ⇒ x = 1 ⇒ 2 + z = z + 2 + n ⇒ n = 0

Hence A is a neutron.