.

Keeping this in view, which of the following ions is isoelectronic with an argon atom?

And we can see that the potassium ion, K⁺, has the same electronic configuration as the chloride ion, Cl^-, and the same electronic configuration as an atom of argon, Ar. Therefore, Ar, Cl^-, and K⁺ are said to be isoelectronic species.

Additionally, is ca2+ Isoelectronic with AR? Isoelectronic means that the entities (atoms, ions, molecules) in question have the same electronic structure and same number of valence electrons. For atoms/ions: Therefore, K+ and Ar are said to be isoelectronic. Ca2+ is also electronic with Ar, for example, and so is Cl-.

Besides, when forming an ion which element will be isoelectronic with argon AR?

To be isoelectronic with argon, which has 18 electrons, sulfur must gain two electrons. Therefore sulfur will form a 2- ion, becoming S^2-.

What are isoelectronic elements?

Isoelectronic refers to two atoms, ions, or molecules that have the same electronic structure and the same number of valence electrons. The term means "equal electric" or "equal charge". Isoelectronic chemical species typically display similar chemical properties.