Which of the following pairs is isoelectronic? | Chemistry | SolveeIt | Solveeit

Today, August 18

Question

Which of the following pairs is isoelectronic?

A

$Ar$ and $Cl$

B

$Na^+$ and $Ne$

C

$Na^+$ and $Mg$

D

$Mg$ and $Ne$

Answer

$Na^+$ and $Ne$

Explanation

Solution

Ar contains 18 electrons.
Cl contains 17 electrons.
Na $^+$ contains 10 electrons.
Ne contains 10 electrons.
Mg contains 12 electrons