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During $\beta^-$ emission
During $\beta^-$ emission
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$\beta^-$ decay: neutron $\rightarrow$ proton + electron + antineutrino
Electron is created, not pre-existing.
Updated On: May 2, 2026
- a neutron in the nucleus decays emitting an electron
- an atomic electron is ejected
- an electron already present within the nucleus is ejected
- part of the binding energy of the nucleus is converted into an electron
- a proton in the nucleus decays emitting an electron
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The Correct Option is A
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