Q. Which of the following is true for a sample of isotope containing $U^{235}$ and $U^{238}$
A) Number of neutrons are same in both
B) Number of protons, electrons and neutrons are same in both
C) Contain same number of protons and electrons but $U^{238}$ contains 3 more neutrons than $U^{235}$
D) $U^{238}$ contains 3 less neutrons than $U^{235}$
Explanation
The correct answer is Option C: Contain same number of protons and electrons but $U^{238}$ contains 3 more neutrons than $U^{235}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.