Classification & Periodicity · Ionisation and electron gain enthalpy
In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.
- (1)lowest and lowest
- (2)highest and lowest
- (3)lowest and highest
- (4)highest and highest
Video solution coming soon
We're animating every PYQ step by step. Subscribe to get them first.
See the full 6 Apr 2026, Shift 2 paper