how nuclear charge effects size of isoelectronic species ? r

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Solution

Dear student,

Isoelectronic Species are those atoms or ions which have the same number of electrons.
The variation of size in given isoelectronic series N ³ ^- >> O ² ^- >> F - >>Ne >> Na ⁺ >> Mg ² ⁺ >> Al ³ ⁺
All the member have 10 electrons but different number of protons.
Size of the species decreases with increasing protons.
The Nitrogen ion has minimum 7 protons and Aluminium ion has maximum 13 protons so N³ ^- is largest and Al³ ⁺ is smallest in size.

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