Lewis structures of water, showing two equivalent structures. The methane molecule is therefore nonpolar. 3. If there are no unshared electron pairs on the central atom, but there are polar covalent bonds, then the molecule's geometry determines molecular polarity.Section 2: VSEPR Theory & Molecular Structure and Polarity Note: Each student is to receive a molecular geometry handout * * * Valence Shell Electron Pair Repulsion Theory: VSEPR The shape of a molecule may be predicted by the number of atoms and un-bonded electrons that surround an atom.
Carbon disulfide, also spelt as carbon disulphide, is a colorless volatile liquid with the formula CS 2.The compound is used frequently as a building block in organic chemistry as well as an industrial and chemical non-polar solvent.