 test chem_isos
 
                                name o16
                                       Z           8
                                       N           8
                                Z_plus_N          16
                          isomeric_state           0
                                       W    1.5994915000000001E+01
                          binding_energy    1.2761933599999999E+02
                                    spin    0.0000000000000000E+00
 
                                      h1
                                      h2
                                     he3
                                     he4
                                     li7
                                     be7
                                      b8
                                     c11
                                     c12
                                     c13
                                     c14
                                     n13
                                     n14
                                     n15
                                     o14
                                     o15
                                     o16
                                     o17
                                     o18
                                     f17
                                     f18
                                     f19
                                    ne18
                                    ne19
                                    ne20
                                    mg22
                                    mg23
                                    mg24
 
                              hydrogen-1
                              hydrogen-2
                                helium-3
                                helium-4
                               lithium-7
                             beryllium-7
                                 boron-8
                               carbon-11
                               carbon-12
                               carbon-13
                               carbon-14
                             nitrogen-13
                             nitrogen-14
                             nitrogen-15
                               oxygen-14
                               oxygen-15
                               oxygen-16
                               oxygen-17
                               oxygen-18
                             fluorine-17
                             fluorine-18
                             fluorine-19
                                 neon-18
                                 neon-19
                                 neon-20
                            magnesium-22
                            magnesium-23
                            magnesium-24
 
                                     he4
 
                                name n14
                                       Z           7
                                       N           7
                                Z_plus_N          14
                                       W    1.4003074000000000E+01
                          binding_energy    1.0465904399999999E+02
                                    spin    1.0000000000000000E+00
 
                                 name h1
                                       Z           1
                                       N           0
                                Z_plus_N           1
                          isomeric_state           0
                                       W    1.0078250499999999E+00
                          binding_energy    0.0000000000000000E+00
                                    spin    5.0000000000000000E-01
 
                               name prot
                                       Z           1
                                       N           0
                                Z_plus_N           1
                          isomeric_state           0
                                       W    1.0078250499999999E+00
                          binding_energy    0.0000000000000000E+00
                                    spin    5.0000000000000000E-01
 
                               name al26
                                       Z          13
                                       N          13
                                Z_plus_N          26
                          isomeric_state           0
                                       W    2.6000000000000000E+01
                          binding_energy    2.1189379600000001E+02
                                    spin    5.0000000000000000E+00
 
                             name al26-1
                                       Z          13
                                       N          13
                                Z_plus_N          26
                          isomeric_state           1
                                       W    2.6000000000000000E+01
                          binding_energy    2.1189379600000001E+02
                                    spin    5.0000000000000000E+00
 
                             name al26-2
                                       Z          13
                                       N          13
                                Z_plus_N          26
                          isomeric_state           2
                                       W    2.6000000000000000E+01
                          binding_energy    2.1166579600000000E+02
                                    spin    0.0000000000000000E+00
 
 
 
                            chem_W(io16)       15.9949150000000007
                            chem_Z(io16)        8.0000000000000000
               chem_binding_energy(io16)      127.6193359999999899
 
 chem_name(io16) o16     
 get_nuclide_index("o16") == io16 T
 
 chem_element_Name(e_he) he      
 chem_get_element_id("he") == e_he T
 
 
             Anders & Grevesse 1989 zsol        0.0189871096318918
            Anders & Grevesse 1989 yesol        0.8528019090082897
 
 
 cno fraction by mass of Z
 
                  Anders & Grevesse 1989        0.7230747736843437
 
                 Grevesse and Noels 1993        0.7090381683373188
 
                Grevesse and Sauval 1998        0.6905108185372406
 
                            Lodders 2003        0.6614916155245809
 
       Asplund, Grevesse and Sauval 2004        0.6664505732961138
 
 
 test Qtotal for 2 he3 => 2 h1 + he4
 
                                  Qtotal    1.2859061999999996E+01
 
