A) nuclear charge (Z)
B) valence principal quantum number (n)
C) electron-electron interaction in the outer orbitals
D) None of the factors because their size is the same
Correct Answer: A
Solution :
The size of isoelectronic species \[{{F}^{-}}\], Ne and \[N{{a}^{+}}\] effected by nuclear charge \[({{Z}_{eff}})\]. With increase in nuclear charge (atomic number), the size of the isoelectronic species decreases.
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