KCET2016Chemistryp Block Elements (Group 15, 16, 17 & 18)
Which is true regarding nitrogen ?
Options
- ALess electronegative
- BHas low ionisation enthalpy
- Cd-orbitals are available
- DAbility to form ( p - p ) bonds with itself
Correct answer
D. Ability to form ( p - p ) bonds with itself
Step-by-step solution
Electronic configuration for ( N (Z=7) ) is ( 1 s² 2 s² 2 p³ ), so, it does not have d-orbitals. Due to completely half-filled p- orbital, its ionization enthalpy is high, and nitrogen is third most electronegative element in periodic table. Nitrogen can form pII - pII bonds to itself.