Consider the following nuclear fission reaciton
${.}_{88}R{a}^{226}\to {.}_{86}R{n}^{222}+{.}_{2}H{e}^4+Q$
In the fission reaction. Kinetic energy of $\alpha$-particle is 4.44 MeV. Find the energy emitted as $\gamma$-radiation in keV in this reaction.
$m\left({.}_{88}R{a}^{226}\right)=226.005$ amu
$m\left({.}_{86}R{n}^{222}\right)=222.000$ amu

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