Each hydrogen atom in an electrically neutral molecule with formula C3H4O2N will form exactly one covalent bond with another atom in the molecule. This is because hydrogen has only one electron in its valence shell and can form only one covalent bond to achieve a stable duet configuration
. The carbon atoms are assumed to form their usual four bonds, and oxygen and nitrogen atoms typically form two and three bonds respectively, but this does not change the bonding capacity of hydrogen. Therefore, each hydrogen atom will have one covalent bond with another atom (usually carbon, nitrogen, or oxygen) in the molecule.