Molecular geometry for molecules with

Molecular geometries for molecules with two to six electron-pair bonds around a central atom (A). 

Molecular geometries for molecules with expanded octets and unshared electron pairs. The gray spheres represent terminal atoms (X), and the open ellipses represent unshared electron pairs (E). For example. AX4E represents a molecule in which the central atom is surrounded by four covalent bonds and one unshared electron pair. 

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