In gamma ray emission from a nucleus

Options

A. both the neutron number and the proton number change
B. there is no change in the proton number and the neutron number
C. only the neutron number of changes
D. only the proton number changes

Answer

B

Explanation

Gamma ray is an electronagentic radiation, dust to the emission of gamma ray, neither the mass number not the atomic number changes. Though the daughter nucleus is same as parent nucleus but still there is a difference in the two, i.e., the daughter nucleus so obtained is present in one of the exclted states and not in the ground state.