How many valence electrons does sulphur have

A neutral sulfur atom has six valence electrons in the usual main-group counting model. Sulfur, also spelled sulphur in some contexts, belongs to group 16. Its outer configuration is 3s² 3p⁴.

Meaning and context

The superscripts in that outer configuration add to six. Sulfur’s full neutral-atom electron count is sixteen, but only six belong to the highest occupied principal shell in this description. Total electrons and valence electrons are different counts.

Examples and usage

A Lewis symbol for neutral sulfur therefore shows six dots. In a simple sulfide ion, S²⁻, the atom has gained two electrons. Its charge and electron count differ from those of the neutral atom.

What to check

Valence-electron bookkeeping helps with Lewis structures but does not by itself determine every possible sulfur compound or bond arrangement. Keep the formula, charge, and chemical setting visible when applying the count.

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