The first ionisation potential is maximum for : - Vidyadip

MCQ

The first ionisation potential is maximum for :

A
Lithium
B
Uranium
C
Iron
✓
Hydrogen

✓

Answer

Correct option: D.

Hydrogen

Hydrogen experiences the maximum effective nuclear charge. After removal of a electron there will be no electron in the species. Just a nucleus with positive charge will be left which is very unstable. Therefore, ionization potential is maximum for hydrogen.

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