NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Atomic Data for Americium (Am)

Atomic Number = 95

Atomic Weight = (243)

Reference E95


Isotope    Mass        Abundance Spin Mag Moment

241Am      241.056823  0         5/2  +1.61
243Am      243.061375  0         5/2  +1.61

 
Am I  Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p65f77s2  8S°7/2
      Ionization energy  48182 cm-1 (5.9738 eV)   Ref. KDEE97
 
Am II Ground State 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p65f77s  9S°4