Pols Table-6.1

element      Z    A    rel_mass
n            0    1    1.008665
H            1    1    1.007825
H            1    2    2.014101
He           2    3    3.016029
He           2    4    4.002603
Li           3    6    6.015124
Li           3    7    7.016003
Be           4    7    7.016928
Be           4    8    8.005308
C            6   12   12.000000
C            6   13   13.003354
N            7   13   13.005738
N            7   14   14.003074
N            7   15   15.000108
O            8   15   15.003070
O            8   16   15.994915
O            8   17   16.999133
O            8   18   17.999160
Ne          10   20   19.992441
Mg          12   24   23.985043
Si          14   28   27.976930
Fe          26   56   55.934940
Ni          28   56   55.942139