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A beta particle may be spontaneously emitted from

(1) a ground-state electron
(2) a stable nucleus
(3) an excited electron
(4) an unstable nucleus

User Tim Wasson
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1 Answer

2 votes

Answer;

-Unstable nucleus

Step-by-step explanation;

A beta particle may be spontaneously emitted from an unstable nucleus. Unstable nuclides undergo spontaneous change or radioactive decay by emitting radiations to attain stability. These radiations are, alpha (α)radiation, beta (β) radiation or gamma (γ) radiation.

User Mostafa Fakhraei
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