None. The Se2- ion is isoelectronic with Krypton.
no
Krypton and selenide ion are isoelectronic with 36 electrons each
false
Krypton and Selenide ion have 36 electrons and are isoelectronic
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.
bromide
None. The Se2- ion is isoelectronic with Krypton.
krypton
yes
no
Krypton and selenide ion are isoelectronic with 36 electrons each
false
Bromide ion is isoelectronic with Krypton.
Krypton and Selenide ion have 36 electrons and are isoelectronic
Krypton is near Strontium
NO!!!! Each element has it own ground state electron configuration. Rubidium is [Kr] 5s1 Strontium is [Kr] 5s2. Notice that strontium has one MORE electron than Rubidium. The symbol [Kr] is shorthand for the full electron configuration of krypton.