A) two \[{{\beta }^{-}}\]
B) two \[{{\beta }^{-}}\] and one \[{{\beta }^{+}}\]
C) one \[{{\beta }^{-}}\] and one \[\gamma \]
D) one \[{{\beta }^{+}}\] and one \[{{\beta }^{-}}\]
E) None of the above
Correct Answer: A
Solution :
\[_{92}{{U}^{238}}\xrightarrow{-\alpha }{{\,}_{90}}{{U}^{234}}\xrightarrow{-2\beta }{{\,}_{92}}{{U}^{234}}\] In the transformation of\[_{90}{{U}^{234}}\]to \[_{92}{{U}^{234}}\] two\[\beta \text{-}\]particles are emitted.
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