Question

During a negative beta decay.

• A. An atomic electron is ejected
• B. An electron which is already present within the nucleus is ejected
• C. A neutron in the nucleus decays emitting an electron
• D. A part of the binding energy is converted into electron

Answer 1

Answer: (C)

A neutron in the nucleus decays emitting an electron

Answer 2

Negative $\beta -$decay is expressed by the equation $n = p^{+} + e^{-} + \nu^{-}$.