Answer:
In beta decay, an electron is emitted.
Explanation:
Beta decay is a type of particle decay in which beta radiation is emitted. That is, an unstable nucleon (proton or neutron) emits a beta particle.
There are two forms of decay or beta particles, β - and β +, which respectively emit an electron or a positron.
That is, beta particles are particles of mass and charge equal to the electron (β-) or positrons, whose mass is equal to the electron but of opposite charge (β +) resulting from the transformation of the neutrons or protons of the nucleus when it is found in an excited state.
