Lewis structure bond number estimation

For each of the following molecules or ions, write the Lewis structure, list the number of lone pairs on the central atom, identify the shape, and estimate the bond angles (a) PBr, ... 

A Lewis structure cannot be written for NO, for it has an odd number of electrons. Pauling interprets its structure as having a three-electron bond and estimates that the extra electron adds about half as much extra stability to the molecule as would an ordinary covalent bond. Alternatively, the molecular orbital picture describes this molecule as having one a bond and f ir bonds (p. 71). At any rate, nitric oxide is, as it should be, paramagnetic. 

To facilitate the drawing of Lewis structures, estimate the number of bonds. 

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