Which of the Following Nuclear Equations Correctly Describes Alpha Emission $\begin{array} { c } 238 \\92\end{array}$

Multiple Choice

Which of the following nuclear equations correctly describes alpha emission?

A) $\begin{array} { c } 238 \\92\end{array}$ U ? $\begin{array} { c } 234 \\90\end{array}$ Th + $\begin{array} { c } 4\\2\end{array}$ He
B) $\begin{array} { c } 238\\92\end{array}$ U ? $\begin{array} { c } 234 \\92\end{array}$ U + $\begin{array} { c } 4\\2\end{array}$ He
C) $\begin{array} { c } 238\\92\end{array}$ U ? $\begin{array} { c } 242 \\94\end{array}$ Pu + $\begin{array} { c } 4 \\2\end{array}$ He
D) $\begin{array} { c } 238\\92\end{array}$ U ? $\begin{array} { c } 4 \\2\end{array}$ He
E) none of the above