Atoms of 1-131 spontaneously decay when the
(1) stable nuclei emit alpha particles.
(2) stable nuclei emit beta particles.
(3) unstable nuclei emit alpha particles.
(4) unstable nuclei emit beta particles.
Atoms of 1-131 spontaneously decay when the
(1) stable nuclei emit alpha particles.
(2) stable nuclei emit beta particles.
(3) unstable nuclei emit alpha particles.
(4) unstable nuclei emit beta particles.