1.

During a negative \[\beta \]-decay          [MNR 1990; IIT 1985]

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 of the nucleus is converted into an electron
Answer» D.                 A part of the binding energy of the nucleus is converted into an electron


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