Q:

What is the electron geometry of SO3?

A:

Sulfur trioxide has a trigonal planar electron geometry, according to David Roth of Tutoring & Homework Help. SO3 has a central sulfur atom and three surrounding oxygens, with a total of 24 valence electrons. Two oxygens form single bonds with sulfur, while one forms a double bond.

The central sulfur atom of SO3 has an oxidation state of +6 and a formal charge of +2. In an SO3 compound, three oxygen atoms are positioned at the corners of a triangle, all in one three-dimensional plane. The bond angles between all oxygens is 120 degrees. SO3 is centrosemetric and has no electric dipole.


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