Owing to its small atomic size and covalent behaviour, the substitution of hydrogen or oxygen by fluorine in organic molecules usually results in a large number of new compounds of an interesting ...

A covalent bond is a shared pair of electrons between two non-metal atoms, for example carbon dioxide. Figure caption, Two atoms sharing a pair of electrons. A covalent bond happens when the ...

Prior to 2000, many drugs that formed a covalent bond with targets did so non-selectively, which often led to undesired side effects when compared to non-covalent drugs. This led to the belief that ...