* Electron Configuration: Sulfur has an electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁴. This means it has 6 electrons in its outermost shell (the 3rd shell).

* Valence Electrons: Valence electrons are the electrons in the outermost shell that participate in bonding. Sulfur has 6 valence electrons.

* Octet Rule: Atoms tend to gain, lose, or share electrons to achieve a stable configuration of 8 electrons in their outermost shell (octet rule).

* Bonding: To achieve an octet, sulfur needs to gain 2 more electrons. This means it can form two covalent bonds by sharing two of its electrons with other atoms.

Examples:

* In hydrogen sulfide (H₂S), sulfur forms two single covalent bonds with two hydrogen atoms.

* In sulfur dioxide (SO₂), sulfur forms one double covalent bond with each oxygen atom.

Let me know if you have any other chemistry questions!