Actinium
Doublet Separations
The Energies Listed are Binding Energies!
- Ac 4p: 890 eV
- Ac 4d: 639 eV
- Ac 4f: 319 eV
- Ac 5s: 272 eV
- Ac 5p: 167 eV
- Ac 5d: 80 eV
The Energies Listed are Binding Energies!
Ac is primarily analysed via the 4f orbital
- Pt 4d (314 eV)
- Nd 4s (316 eV)
- Ar 2s (320 eV)
- Er 4p (320 eV)
Energies listed are Kinetic Energies!
The Energies Listed are Binding Energies!
Actinium is a rare and highly radioactive element (with a half-life of about 21.7 years for the most stable isotope, Ac-227), and working with it requires special handling, equipment, and precautions. As such, XPS analysis of this element is extremely rare.
Most studies on actinium involve its oxides (e.g., Ac₂O₃) or actinium-based materials like actinide complexes or compounds for nuclear research.
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