Molecules that have a small separation of charge have a small m

Molecules that have a small separation of charge have a small m

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Molecules that have a small separation of charge have a small m. Molecules that have a large separation of charge have a large m. For example, HF and HI: Dipole Moments There are some nonpolar molecules that have polar bonds. There are two conditions that must be true for a molecule to be polar. 1. There must be at least one polar bond present or one lone pair of electrons. 2. The polar bonds, if there are more than one, and lone pairs must be arranged so that their dipole moments do not cancel one another. The Continuous Range of Bonding Types Covalent and ionic bonding represent two extremes. 1. In pure covalent bonds electrons are equally shared by the atoms. 2. In pure ionic bonds electrons are completely lost or gained by one of the atoms.
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Unformatted text preview: Most compounds fall somewhere between these two extremes. Continuous Range of Bonding Types All bonds have some ionic and some covalent character. For example, HI is about 17% ionic The greater the electronegativity differences the more polar the bond. Synthesis Question As we all know, in the wintertime we are more likely to get shocked when we walk across carpet and touch the door knob. Here is another wintertime experiment to perform. Turn on a water faucet until you have a continuous but small stream of water coming from the faucet. Brush your hair vigorously then hold the brush near the stream of water....
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