Physics Atomic and Nuclear Physics Karnataka - CET Previous Year Question MCQ (Single Correct)

decay means emission of electron from

A
innermost electron orbit
B
a stable nucleus
C
outermost electron orbit
D
radioactive nucleus.

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The correct answer is:
D

In beta minus ( decay, an electron is emitted by the radioactive nucleus, as in the decay

where is the antineutrino.

In beta plus decay, a positron is emitted by the radioactive nucleus, as in the decay

where is the neutrino.

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