unshared pair造句

例句与造句

1. Halogens are " ortho / para " directors, since they possess an unshared pair of electrons just as nitrogen does.
2. :: So for the example given, would the hybridization be 3 unshared pairs + 1 pair from the coordinate covalent bond = sp 3 ? talk ) 01 : 04, 17 July 2008 ( UTC)
3. Other substituents, such as the alkyl and aryl substituents, may also donate electron density to the " pi " system; however, since they lack an available unshared pair of electrons, their ability to do this is rather limited.
4. It's difficult to find unshared pair in a sentence. 用unshared pair造句挺难的