CH 11 Molecular Geometries and Bonding Theories

Flashcards to help review the concepts of molecular geometries and bonding theories.

According to VSEPR theory, regions of high electron density around the central atom are arranged as far apart as possible to minimize __.

repulsions

The mnemonic for the strengths of repulsion between lone pairs and bonding pairs is __.

lp/lp > lp/bp > bp/bp

In VSEPR Theory, the basic shapes are based on the number of regions of high __ around the central atom.

electron density

If a molecule has two bonding pairs and no lone pairs, the molecular geometry is __.

linear

The hybridization for a tetrahedral shape is __.

sp3

Molecules are considered nonpolar if the bond dipoles __ each other.

cancel

A molecule is polar if at least one bond is __, or if the bonds are polar and the molecule is not symmetric.

polar

In Valence Bond Theory, a __ bond is formed from the overlap of two singly occupied atomic orbitals.

sigma (σ)