### Atomic Data for Rubidium (Rb)

### Atomic Number = 37

### Atomic Weight = 85.4678

### Reference = E95

    Isotope   Mass       Abundance Spin Mag Moment

    85Rb      84.911794  72.17%    5/2  +1.35302
    87Rb      86.909187  27.83%    3/2  +2.7512

    Rb I  Ground State 1s22s22p63s23p63d104s24p65s  2S1/2
          Ionization energy  33690.81 cm-1 (4.177128 eV)   Ref. J61b

    Rb II Ground State 1s22s22p63s23p63d104s24p6  1S0
          Ionization energy  220105.0 cm-1 (27.2895 eV)   Ref. R75