Q. How many neutrons are more than protons in $\ _{92}U^{235}$nucleus?
A) 54
B) 49
C) 51
D) 143
Explanation
(c) Number of neutrons in $\ _{92}U^{235}$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = 235 - 92 = 143$
and number of protons=92
$\therefore$ Number of neutrons more than number of protons
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = 143 - 92 = 51$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.