Question

s-2 (z=16) is isoelectronic with

Answer 1

Answer:

Argon

Explanation:

Hi!

S-2 means that sulphur has 18 electrons and the condition to be isoelectronic is that no of electrons should be the  same in the pair so at the ground state Ar is isoelectronic is with S-2

Hope it helps you!!

Answer 2

$Ar$ is isoelectronic is with $S^{-2}$

Explanation:

• Isoelectronic species are defined as two atoms, ions, or molecules which have the same electronic structure as well as the same number of valence electrons which means "equal electric" or "equal charge".
• Isoelectronic chemical species generally have similar chemical properties.

• $S^{-2}$ sulphur  means that it has 18 electrons

• Condition to be isoelectronic is that it should have a number of electrons which should be the same in the pair as that in the ground state.

• $Ar$ is isoelectronic is with $S^{-2}$

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