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(Ar) Argon because Ca ion is Ca2+ so it give away 2 electrons

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13y ago
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5mo ago

Krypton is isoelectronic with a calcium ion, as both have 36 electrons. Calcium loses 2 electrons to form a 2+ cation, which results in it having the same electron configuration as krypton.

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Q: Which noble gas is isoelectronic with a calcium ion?
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What noble gas is isoelectronic with Calcium?

Krypton is the noble gas that is isoelectronic with Calcium. Both elements have 20 electrons, with Calcium having the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 and Krypton having the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10.


Which noble gas is isoelectronic with a sulphur ion?

Krypton is isoelectronic with a sulfur ion. Both have 18 electrons.


What noble gas is isoelectronic with the selenium?

None. The Se2- ion is isoelectronic with Krypton.


Which noble gas is isoelectronic with the oxide ion O2?

The noble gas that is isoelectronic with the oxide ion O2 is neon (Ne). Both the oxide ion O2 and the neon atom have 10 electrons.


What noble gas is isoelectronic with an aluminum ion?

The noble gas that is isoelectronic with an aluminum ion is neon. Both the aluminum ion (Al^3+) and neon have 10 electrons.


What noble gas is isoelectronic with N?

Helium is isoelectronic with nitrogen, as they both have 5 electrons.


Oxide ion is isoelectronic which noble gas?

Oxide ion (O2-) is isoelectronic with neon. Both species have the same number of electrons, which is 10.


Ions of calcium fluorine magnesium and iodine have electron configurations that are similar to which noble gases?

Calcium and magnesium ions have electron configurations similar to that of neon, fluorine ions are similar to that of the noble gas neon, and iodine ions are similar to the noble gas xenon.


Which noble gas is isoelectronic to thallium?

None. However, the noble gas helium is isoelectronic with Li+ ion (and not with Li element)


Is Cl isoelectronic with a noble gas?

Yes, Cl^- is isoelectronic with a noble gas. Chlorine gains one electron to achieve the same electron configuration as argon, a noble gas.


What noble gas is in the ion Mg 2?

Mg2+ and neon are isoelectronic


Which noble gas is isoelectronic with a sulfur ion?

Krypton is isoelectronic with a sulfur ion. Both have the same number of electrons (18) but different numbers of protons.