bromide
Atoms are isoelectronic when they have the same electron configuration. Therefore, an anion isoelectronic to krypton is bromide. A cation isoelectronic to krypton is rubidium.
No, argon does not form an ion isoelectronic with krypton. Argon has 18 electrons, while krypton has 36 electrons. To be isoelectronic, the two species should have the same number of electrons.
None. The Se2- ion is isoelectronic with Krypton.
krypton
No, bromine forms an ion with a charge of -1. An ion isoelectronic with krypton would have the same number of electrons as krypton, which is 36 electrons.
Krypton and selenide ion are isoelectronic with 36 electrons each
Argon is isoelectronic with the sulfide ion.
Krypton, calcium, chlorine+1 are isoelectronic with argon because they all have the same number of electrons, 18.
Krypton is the noble gas isoelectronic with calcium, meaning they have the same number of electrons.
Krypton, radon, and xenon cation are all isoelectronic with xenon because they have the same number of electrons.
S2- ion is isoelectronic with argon (with 18 electrons).
Isoelectronic means having the same amount of electrons, so Kr is isoelectric with Br.