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Which outcome occurs during beta-minus decay of a neutron within an unstable atomic nucleus?

A)Emission of an electron and antineutrino
B)Absorption of a proton and neutrino
C)Emission of a positron and neutrino
D)Absorption of an electron and antineutrino

💡 Explanation

During beta-minus decay, a neutron transforms into a proton via the weak interaction, emitting an electron and an antineutrino to conserve charge and lepton number. Therefore, emission of an electron and antineutrino results, rather than the other options, which violate conservation laws or involve other particles.

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