Identify from the following the isoelectronic species :Ne, O2, Na+ OR – InterviewSolution

1.

Identify from the following the isoelectronic species :Ne, O2, Na+ OR Ar, Cl2-, K+

Answer»

Atoms and ions having the same number of electrons are isoelectronic.

Species	No. of electrons
Ne	10
O^2-	8 + 2 = 10
Na⁺	11 – 1 = 10
Ar	18
Cl^2-	17 + 2 = 19
K⁺	19 – 1 = 18

Hence,

Ne, O^2-, Na⁺ are isoelectronic species.

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