An atom in a metastable state is
A) unusually low in energy.
B) unusually stable.
C) very unreactive.
D) high in energy.
E) emittable.

Question

Quizplus · Accepted Answer

A metastable state refers to an excited state of an atom that is higher in energy than the ground state but does not immediately decay to a lower energy state. This means the atom is temporarily stable in a higher energy configuration.

An Atom in a Metastable State Is