### Atomic Data for Radium (Ra)

### Atomic Number = 88

### Atomic Weight = 226.0254

### Reference = E95

    Isotope    Mass        Abundance Spin Mag Moment

    223Ra      223.018501  Some      1/2
    224Ra      224.020186  Some      0
    226Ra      226.025402  Some      0
    228Ra      228.031064  Some      0

    Ra I  Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p67s2  1S0
          Ionization energy  42573.36 cm-1 (5.278423 eV)   Ref. AWT80

    Ra II Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p67s  2S1/2
          Ionization energy  81842.31 cm-1 (10.14715 eV)   Ref. M58