Question: What particle (a particle, electron, or positron) is emitted in the following radioactive decays? (a) 2714Si 2713Al; (b) 23892U 23490Th; (c) 7433As 7434Se.

What particle
(a particle, electron, or positron) is emitted in the following radioactive decays?
(a) 2714Si → 2713Al;
(b) 23892U → 23490Th;
(c) 7433As → 7434Se.

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