Question

# Nuclear Isomerism is exhibited by?A. molecules onlyB. All diatomic moleculesC. All diatomic molecules have even Z value.D. All diatomic molecules having odd Z value.

Hint: Nuclear isomers are atoms with same mass number and atomic numbers, but with different states of excitation in the atomic nucleus. The higher or more excited state is called a metastable state, while the stable, unexcited state is called the ground state. Metastable isomers can be produced through nuclear fusion or other nuclear reactions.

For example, silver-116 has two metastable states in addition to the ground state, so the three states would be written as ${}^{116}Ag$, ${}^{116m1}Ag$ , ${}^{116m2}Ag$.