Interpretation: The significance of the even number of protons and neutrons in this case should be explained.
Pauli Exclusion Principle:
Its states that ’No two electrons in atoms can have identical set of four set quantum number’.
I.e. it may be 3 identical but it differ from 4th one must be differ. As an orbital can contain a maximum of only two electrons and the two electrons must have opposite spins.
The maximum number of electron in s subshell is 2, p subshell is 6 d subshell is 10 and f subshell is 14.
Nuclei with an even number of protons and an even number of neutrons are more stable rather than those having an odd number of protons and odd number of neutrons.
The significance of the even number of protons and neutrons for the given case.