beta particle

US /ˈbeɪtə ˌpɑːrtɪkl/
UK /ˈbeɪtə ˌpɑːrtɪkl/
"beta particle" picture
1.

베타 입자

a fast-moving electron or positron emitted during radioactive decay of an atomic nucleus.

:
The radioactive isotope decays by emitting a beta particle.
방사성 동위원소는 베타 입자를 방출하여 붕괴한다.