| 21. | Would the oxygens have 3 lone pairs each?
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| 22. | The lone pair on the alpha-C oxygen picks up a proton from a nearby Lysine amino acid.
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| 23. | A nitrogenous base owes its basic properties to the lone pair of electrons of a nitrogen atom.
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| 24. | Water can both donate a lone pair or a proton-- and that is usually the important part.
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| 25. | When this occurs, the pi-bond of the electrophile is converted into a lone pair on the oxygen.
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| 26. | But the imidazole and pyridine lone pairs also look good for accounting for some of those pKas.
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| 27. | These lone pairs are then reconverted back into a pi-bond, resulting in the expulsion of the-OR group.
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| 28. | Once all lone pairs are placed, atoms especially the central atoms may not have an octet of electrons.
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| 29. | The difference between lone pairs and bonding pairs may also be used to rationalize deviations from idealized geometries.
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| 30. | A lone pair of 90-seat self-powered Budd Rail Diesel Cars ( RDCs ) were acquired for express service.
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