NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Astatine (At)

Atomic Number = 85

Atomic Weight = 210

Reference E95


Isotope    Mass        Abundance Spin Mag Moment

210At      209.987126  0         5    
221At      210.987469  0         9/2  

 
At I  Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p5  2P°3/2