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GUJCET · Physics · Nuclei
How many neutrons are more than protons in \({ }_{92}^{235} \mathrm{U}\) nucleus?
- A 51
- B 143
- C 49
- D 54
Answer & Solution
Correct Answer
(A) 51
Step-by-step Solution
Detailed explanation
A.51
in \({ }_{92}^{235} \mathrm{U}, \mathrm{Z}=92\)
\[
\begin{aligned}
\mathrm{N} =\mathrm{A}-\mathrm{Z} \\
\mathrm{~N} =235-92 \\
\mathrm{~N} =143 \\
\therefore \mathrm{~N}-\mathrm{Z} =143-92 \\
\therefore \mathrm{~N}-\mathrm{Z} =51
\end{aligned}
\]
in \({ }_{92}^{235} \mathrm{U}, \mathrm{Z}=92\)
\[
\begin{aligned}
\mathrm{N} =\mathrm{A}-\mathrm{Z} \\
\mathrm{~N} =235-92 \\
\mathrm{~N} =143 \\
\therefore \mathrm{~N}-\mathrm{Z} =143-92 \\
\therefore \mathrm{~N}-\mathrm{Z} =51
\end{aligned}
\]
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