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NIST Pubs

Spectroscopic Data for Neutral Francium (Fr I)

Author(s)
Jean E. Sansonetti
Energy levels and hyperfine structure constants have been compiled for the sixteen longest-lived isotopes of francium (Z=87). Wavelengths with classifications

Binding Energies in Atomic Negative Ions: III

Author(s)
T Andersen, H K. Haugen, H Hotop
The article updates a fourteen-year-old review on this subject [J. Phys. Chem. Ref. Data 14, 731 (1985]. A survey of the electron affinity determinations for

Periodic Table of the Elements

Author(s)
Karen Olsen
The periodic table contains NIST's latest critically evaluated data for atomic properties of the elements.
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