The most biologically abundant of these elements is carbon, which has the desirable attribute of forming multiple, stable covalent bonds.

The fixation of atmospheric nitrogen is a very energy-intensive process, as it involves breaking the very stable triple bond between the nitrogen atoms.

As a third row transition metal, iridium forms very stable bonds to carbon and the organometallic chemistry is extensive.

Jane Poynter stressed the importance of the pre-existing stable emotional bond between the members of the couple.

There is considerable evidence to show that many chemical carcinogens act by forming stable covalent bonds with cellular macromolecules such as DNA.

The free radical uses one electron from the pi bond to form a more stable bond with the carbon atom.

The double bond readily reacts with the thiol group found on cysteine to form a stable carbon-sulfur bond.

More stable metal-metal bonds are expected to be longer than unstable bonds.

It has been used for thousands of years in ceramics and has long been known for the easy and stable bonds it forms with oxygen.

Chemistry, again: if you introduce a new element, you never know how stable the original bond is.