Q.

What happens when a neutron is absorbed by a nucleus of an atom of U235?

A. mass number of atom increases
B. one electron is let out
C. u236 isotope is formed
D. nucleus becomes unstable
Answer» C. u236 isotope is formed
Explanation: when a neutron is absorbed by a nucleus of an atom u235, a u236 isotope is formed. this isotope is highly unstable which lasts for one millionth of a second and splits into two equal parts releasing energy of 200mev.
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