31. Examples are the diatomic molecule hydrogen ( H 2 ) and the polyatomic molecule sulfur ( S 8 ). 32. According to " Scientific American ", it allowed accurate prediction of the characteristics of diatomic molecules . 33. The first demonstration of a lithographically-fabricated photonic molecule was inspired by an analogy with a simple diatomic molecule . 34. At that time, he was Born's assistant, working with quantum interpretation of band spectra of diatomic molecules . 35. For homonuclear diatomic molecules , the index g or u denotes the existence of a parity of the total wave function. 36. The oxygen from the water combines with carbon from the fuel to form carbon monoxide and the hydrogen forms a diatomic molecule . 37. An example of a stable diatomic dication which is not formed by oxidation of a neutral diatomic molecule is the dimercury dication. 38. Naturally occurring nitrogen ( N 2 ) is a diatomic molecule which makes up approximately 80 % of the earth s atmosphere. 39. Excimers are diatomic molecules or complexes of molecules that have stable excited electronic states and an unbound or weakly bound ground state. 40. "' Diatomic molecules "'are molecules composed of only two atoms, of the same or different chemical elements.