The nuclear fission reaction with the formation of the deuterium has the missing part as ⁴₂He.
What is nuclear radiation?
Nuclear radiation is given as the reaction in which the emission is formed in the form of the nuclear particles that made the change in the nucleus of the atom.
The nuclear radiation that made the release of ₁¹H can be given to fuse the electron with the He and form:
²₁H + ³₂He →⁴₂He + ₁¹H
Thus, the missing part in the nuclear fission reaction is ⁴₂He.
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