NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Strontium (Sr)

Atomic Number = 38

Atomic Weight = 87.62

Reference E95

Isotope   Mass       Abundance Spin Mag Moment
84Sr 83.913430 0.56% 0 86Sr 85.909267 9.86% 0 87Sr 86.908884 7.00% 9/2 -1.093 88Sr 87.905619 82.58% 0
Sr I  Ground State 1s22s22p63s23p63d104s24p65s2  1S0
      Ionization energy  45932.09 cm-1 (5.69485 eV)   Ref. RB78
Sr II Ground State 1s22s22p63s23p63d104s24p65s  2S1/2
      Ionization energy  88964.0 cm-1 (11.0301 eV)   Ref. M52