CHEM 121 Studioby Learn4Less · UBC CHEM 121

Structure card

Sulfite ion · $\ce{SO3^2-}$

Valence electrons: 26
VSEPR class: $\mathrm{AX_3E}$
Electron geometry: tetrahedral
Shape: trigonal pyramidal
Bond angle: 109.5° (less than 109.5° (about 107° in NH₃))
Hybridization (S): $sp^{3}$
Polarity: polar
Formal charges: S +1, O −1 (×3)
Also accepted: expanded-octet structure with lower formal charges