From the following nuclei select the isotopes :
`_(92)^(238)U`, 92U '234, 6C'12

Complete the following nuclear equation by suppling the symbol for the other product of the fission : ._(92)^(235)U+_(0)^(1)n rarr _(38)^(94)Sr +………+2_(0)^(1)n a) ._(54)^(139)Xe b) ._(54)^(140)Xe c) ._(64)^(104)Gd d) none of these

Which of the following pairs of sets are disjoint:- { a, e, i, o, u } and { c, d, e, f}

In the given radioactive disintegration series ._(92)^(235)U rarr_(82)^(207)Pb Calculate difference between number of alpha and number of beta particles emitted in this series.

Which one of the following is used for the production of UF_6 in the enrichment of U^235 ?

The alpha particle faces a coulomb barrier .A neutron being uncharged faces no such barrier .Why does the nucleus _(92)U^(238) not decay spontaneously by emitting a neutron?