Mirror nuclei are nuclei where the number of protons of element one (Z1) equals the number of neutrons of element two (N2), the number of protons of element two (Z2) equal the number of neutrons in element one (N1) and the mass number is the same. In short, Z1=N2 and Z2=N1. Examples of mirror nuclei: Pairs of mirror nuclei have the same spin and p...