Isoelectronic [ENDORSED]

[Kassandra Molina 2B]

What does it mean for elements to be isoelectronic?

[Alex Kashou]

Atoms and ions have the same number of electrons. For example, Na+, Mg+2, F-, and Ne are isolectronic because they have the same amount of electrons.

[Michaela Capps 1l]

Also means they have the same electronic structure and will have similar chemical properties

[Mitch Mologne 1A]

However, these elements will have varying atomic radii.

[Jorge Gomez3F]

When an atom and ion have the same charge. For example, O- and F (not sure if O- exists but im using it to get the point across)
isoelectronic by definition are atoms which contain the same amount of electrons

[Catherine Yang 3G]

Isoelectronic ions have the same number of electrons, even though they have different numbers of protons.

[304984981]

it means all atoms with same number of electrons
for exmaple Na has 19 electrons but Mg has 20 electrons, so they are not isoelectronic
but Na and Mg- are isoeletronic since Mg- has 20 electrons as well

[Surya Palavali 1D]

It means they have the same number of electrons. Ions of one element may be isoelectronic with uncharged atoms of another due to the gain/loss of electrons.

[FizaBaloch1J]

Isoelectronic means that two or more elements have the same numbers of electrons or the same electronic structure.

[Anthony Mercado 1K]

In the scenario of two elements being isoelectronic, why wouldn't the element gaining or losing electrons entirely become the other element it's isoelectronic to? Ie. Why wouldn't F- just become Ne?

[Garrett Dahn 1I]

In the scenario of two elements being isoelectronic, why wouldn't the element gaining or losing electrons entirely become the other element it's isoelectronic to? Ie. Why wouldn't F- just become Ne?

The feature that distinguishes elements is their atomic number, which is just the number of protons in their nucleus. The difference, then, between Fluorine and Neon is not their number of electrons or electron orbitals: it is the number of protons in their respective nuclei. Fluorine has nine protons; Neon has ten. F-, then, doesn't become Ne because F- still has nine protons. It is thus an anion of Fluorine but still very much Fluorine because the number of protons has not changed.

Hope this is helpful!

[Yitzchak Jacobson 1F]

How I interpret atoms being isoelectronic, is the same as them both having the same chemical properties, and the same number of electrons. Really hope this is helpful :)