(Ar) Argon because Ca ion is Ca2+ so it give away 2 electrons
oxide ion is isoelectronic with neon.
Argon is isoelectronic with the sulfide ion.
If you go backwards two elements, you will find Neon (Ne). If you go forwards six, you will find Argon (Ar).
Oxide ion O2- is isoelectronic with neon.
S2- ion is isoelectronic with argon (with 18 electrons).
oxide ion is isoelectronic with neon.
Argon is isoelectronic with the sulfide ion.
If you go backwards two elements, you will find Neon (Ne). If you go forwards six, you will find Argon (Ar).
The noble gas neon (Ne), is isoelectronic with N3- ion (not N atom)
Oxide ion O2- is isoelectronic with neon.
S2- ion is isoelectronic with argon (with 18 electrons).
Not a neutral Cl atom but the chloride ion Cl- is isoelectronic with the noble gas argon.
None. The Se2- ion is isoelectronic with Krypton.
Krypton and selenide ion are isoelectronic with 36 electrons each
Argon (Ar)
None. However, the noble gas helium is isoelectronic with Li+ ion (and not with Li element)
Ca2+ is isoelectronic with the noble gas, Argon. F-, Mg2+ are isoelectronic with the noble gas, Neon. I- is isoelectronic with the noble gas, Xenon