Boron, carbon, nitrogen and oxygen: these four elements can form chemical triple bonds with each other due to their similar electronic properties. Examples of this are the gas carbon monoxide ...

Louisiana's protocol says death row inmates will be forced to breathe pure nitrogen through a respirator mask for 15 minutes or for 5 minutes after the inmate's heart rate reaches a flatline on an EKG ...

This delicate balance of steric and electronic factors makes nitrogen the heteroatom of choice for chemical synthesis and for studies of the structure and activity of biologically active molecules 7.