1.

The difference between U235 and U238 atoms is that U238 contains ………….(A) 3 more protons (B) 3 more protons and 3 more electrons (C) 3 more neutrons and 3 more electrons (D) 3 more neutrons

Answer»

Correct Option is : (D) 3 more neutrons

\(U^{235}\) and \(U^{238}\) are isotopes because they have same number of protons but differ in number of neutrons. \(U^{238}\) contain 3 more neutrons as compared to \(U^{235}\) .

Option : (D) 3 more neutrons



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