Electronic configuration of seaborgium

Electrons in each shell

Seaborgium has 106 electrons arranged as 2, 8, 18, 32, 32, 12, 2 across 7 shells, which is why it sits in period 7.

Elements this heavy last for only a moment, so this configuration is predicted from theory rather than measured.

How to write it

Start from the previous noble gas core, written in square brackets, then add the remaining electrons in filling order. For seaborgium that gives [Rn] 5f¹⁴ 6d⁴ 7s².

Seaborgium at a glance

Other elements in group 6