state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Chemistry Classification of Elements and Periodicity in Properties Periodicity In Properties
The ionization energy of nitrogen is more than that of oxygen. This is because of
1
The greater attraction of electrons by the nucleus
2
The extra stability of half - filled p - orbitals
3
The smaller size of nucleus
4
The nitrogen atom has less nuclear charge
5
Question Not Attempted