Find the energy liberated in the reaction \[ \begin{array}{ccc} & { }^{223} \mathrm{Ra} \righta...

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Find the energy liberated in the reaction
\[
\begin{array}{ccc}
& { }^{223} \mathrm{Ra} \rightarrow{ }^{209} \mathrm{~Pb}+{ }^{14} \mathrm{C} . \\
{ }^{223} \mathrm{Ra} & { }^{209} \mathrm{~Pb} & { }^{14} \mathrm{C} \\
223.018 \mathrm{amu} & 208.981 \mathrm{amu} & 14.003 \mathrm{amu}
\end{array}
\]
\[
P
\]
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