Q. When a uranium isotope $^{235}_{92}U$ is bombarded with a neutron, it generates $^{89}_{36}Kr$, three neutrons and :
A) $^{91}_{40}Zr$
B) $^{101}_{36}Kr$
C) $^{103}_{36}Kr$
D) $^{144}_{56}Ba$
Explanation
[Solution] Conserving A: 236 = 89 + 3 + A gives A = 144; Z: 92 = 36 + Z gives Z = 56, i.e. $^{144}_{56}Ba$. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.