~repack~ - So42 Molecular Geometry

Even though the S-O bonds are polar (because oxygen is more electronegative than sulfur), the in terms of its shape. The symmetric tetrahedral arrangement causes the individual bond dipoles to cancel each other out. However, the ion as a whole still carries a net charge of -2. Summary Table Description Central Atom Sulfur (S) Steric Number Coordination Number Molecular Geometry Tetrahedral Bond Angle Hybridization sp3s p cubed Understanding the tetrahedral nature of SO42−cap S cap O sub 4 raised to the 2 minus power

With this simple single-bond structure:

In the most stable Lewis structure, sulfur acts as the central atom. While a simple octet structure works, the formal charge is minimized when sulfur forms with two oxygen atoms and single bonds with the other two. This gives sulfur an expanded octet (12 electrons), which is common for elements in Period 3. 2. VSEPR Theory: Why is it Tetrahedral? so42 molecular geometry

Why does this geometry matter? In the mineral kingdom, the tetrahedral nature of sulfate is foundational. Minerals like gypsum and barite are built on the stacking of these perfect tetrahedra paired with metal cations. The stability of the tetrahedral shape contributes to the stability of these rocks, which form vast layers in the Earth's crust. Even though the S-O bonds are polar (because

Sulfur is the least electronegative and acts as the central atom. Summary Table Description Central Atom Sulfur (S) Steric