Final answer:
The molecular geometry of SeO₃, based on its Lewis Dot structure and VSEPR theory, is trigonal pyramidal.
Step-by-step explanation:
The question pertains to the molecular geometry of the molecule SeO₃. To determine the shape of the molecule, we need to first draw its Lewis Dot structure and then use the VSEPR (Valence Shell Electron Pair Repulsion) model to predict the molecular geometry. Selenium (Se) is the central atom; it forms double bonds with each of the three oxygen (O) atoms.
After drawing the structure, we can see that Se has three bonding pairs and one lone pair of electrons, which suggests a trigonal pyramidal shape according to the VSEPR model.