The atomic number of the element from the following with lowest ${1}^{\text{st }}$ ionisation enthalpy is :

[JEE Main 2025, 8 Apr (Shift 1)]

Question

The atomic number of the element from the following with lowest ${1}^{\text{st }}$ ionisation enthalpy is : [JEE Main 2025, 8 Apr (Shift 1)]

YESPYQ · Accepted Answer

Options are free to see. Unlock the correct answer and full explanation with PYQ Pass.

The atomic number of the element from the following with lowest \({1}^{\text{st }}\) ionisation enthalpy is : [JEE Main …