COMEDK · Physics · 29. Nuclear Physics
The number of neutrons in \({ }_{92} \mathrm{U}^{235}\) nucleus is
- A 327
- B 235
- C 143
- D 92
Answer & Solution
Correct Answer
(C) 143
Step-by-step Solution
Detailed explanation
The atomic mass or mass number of an atom \({ }_{Z} X^{A}\) is given by \[ A=Z+N \] where, \(A=\) mass number, \(Z=\) atomic number and \(N=\) number of neutrons. For, \({ }_{92} \mathrm{U}^{235}, A=235\) and \(\mathrm{Z}=92\) \[ N=A-Z=235-92=143 \]
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