hydrogen atom

of a solution having an excess of hydrogen atoms (having a pH of less than 7) s

A compound radical, NH2, not yet obtained in a separate state, which may be regarded as ammonia from the molecule of which one of its hydrogen atoms has been removed

a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals

n a methyl with the hydrogen atom replaced by an amino radical

The power of an acid to unite with one or more atoms or equivalents of a base, as indicated by the number of replaceable hydrogen atoms contained in the acid.