Also called alpha-naphthyl group, alpha-naphthyl radical.the univalent group C10H7–, having a replaceable hydrogen atom in the first, or alpha, position; 1-naphthyl group.
Also called beta-naphthyl group, beta-naphthyl radical.the univalent group C10H7–, having a replaceable hydrogen atom in the second, or beta, position; 2-naphthyl group.
