Due to the non-symmetrical shape of the molecule (bent), the molecule itself is polar (it has a \(\delta-\) and \(\delta+\) side). Carbon tetrachloride has four polar covalent bonds. It is a ...

Substances that consist of covalent molecules are usually gases or liquids at room temperature. Ionic bonds are formed between a metal and non-metal, for example, sodium chloride. Outer electrons ...

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 ...