Lewis Dot Structures

Arrange valence electrons around a single atom — the same outer electrons you met in the Electron Configuration Explorer — and see how the octet rule connects to bonding.

s-block

p-block

d-block

f-block

All 118 elements are supported. Representative elements (blue/orange) always follow standard filling rules; transition and inner-transition metals (teal/pink) sometimes have documented exceptions, marked when they occur.

57–71

89–103

Selected element

S Sulfur

6 valence electrons(3s² 3p⁴)

This matches the 6 valence electrons from Sulfur's electron configuration (3s² 3p⁴).

This element needs 2 more electrons to reach a stable octet — a big reason it tends to form bonds.

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