Match each term to its definition or characteristic. a.galactose k.catalyst b.electron l.polar c.radioactivity m.buffer d.proton n.anion e.amino group o.enzymes f.glucose p.matter g.compounds q.neutron h.carboxyl group r.atomic weight i.cation s.fructose j.glycogen -What differentiates one element from another?
A) The number of shells encircling the nucleus B) The number of electrons C) The number of neutrons D) The number of protons