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Question
During a negative beta decay,
Options
an atomic electron is ejected
an electron which is already present within the nucleus is ejected
a neutron in the nucleus decays emitting an electron
a proton in the nucleus decays emitting an electron.
Solution
a neutron in the nucleus decays emitting an electron
Negative beta decay is given as
`n → p + e^(-) + barnu`
Neutron decays to produce proton, electron and anti-neutrino.
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