! net_o_burn

    add_isos_and_reactions(
        neut,
        h 1 2,
        he 3 4,
        li7,
        be7,
        b8,
        c 12 13,
        n 13 15,
        o 15 18,
        f 17 20,
        ne 18 22,
        na 20 23,
        mg 22 26,
        al 24 27,
        si 27 31,
        p 30 33,
        s 31 35,
        cl35, cl37,
        ar 36 38,
        k39,
        ca40, ca42,
        sc45,
        ti46,
        fe56
        )