Brønsted--Lowry acids donate protons to other chemicals , whilst Brønsted--Lowry bases have protons. (A H atom that has lost its electron is A nucleon = H+).Lewis distinct to specify acids as negatron brace acceptors and bases as negatron brace donors.FUN non --IB demand facts: Lewis was A genius and a jerk -- so no Nobel choice for him. helium may have killed himself with HCN (draw the Lewis structure!). Ironically you cannot draw the Lewis construction of NO, N monoxide).