Xenon Valence Electrons
Why xenon has 8
Xenon has 54 electrons, arranged as 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6. The highest shell is n = 5, holding 5s2 5p6, so 2 + 6 = 8.
Xenon is in group 18; for groups 13–18 subtract 10 from the group number.
What that means for bonding
With a full outer shell, xenon has no drive to gain, lose or share electrons, which is why it is so unreactive.
Electrons per shell: 2, 8, 18, 18, 8. See the xenon electron configuration and orbital diagram or the full xenon data sheet.
Same group, same count
Xenon valence electrons FAQ
How many valence electrons does xenon have?
Xenon has 8 valence electrons. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶, and the outermost shell (n = 5) holds 5s² + 5p⁶.
How do you find the valence electrons of xenon?
Xenon is in group 18; for groups 13–18 subtract 10 from the group number.
How many bonds does xenon form?
With a full outer shell, xenon has no drive to gain, lose or share electrons, which is why it is so unreactive.
What is the Lewis dot structure of xenon?
The symbol Xe with 8 dots around it, one per valence electron, placed singly on each side before any side is paired.
How many core electrons does xenon have?
46: 54 electrons in total minus the 8 valence electrons.