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Question:

The size of the iso-electronic species Cl⁻, Ar and Ca²⁺ is affected by:

principle quantum number of valence shell

nuclear charge

electron-electron interaction in the outer orbitals

azimuthal quantum number of valence shell

Solution:

Correct option is B. nuclear charge
Solution:- (B) Nuclear charge
For isoelectronic species the size is compared by nuclear charge.