Illustrate the beta decay of carbon - 14.

Beta decay of carbon-14 can be illustrated as follows:

Before decay:
Carbon-14 (14C) -> Nitrogen-14 (14N) + β- particle + antineutrino

After decay:
14C -> 14N + β- + antineutrino

The beta particle emitted during the decay is an electron (β-) and the antineutrino is a minute, electrically neutral particle with no mass.