Handbook of Basic Atomic Spectroscopic Data by Jean E. Sansonetti and William C. Martin (data update November 2013)

By Jean E. Sansonetti and William C. Martin. NIST Standard Reference Database 108; data last updated November 2013.

Cited row: $3d^{10}({}^{1}S)4s{}^2{S}_{1/2}$ at zero spectroscopic wavenumber. The table distinguishes the neutral atom from the closed-shell copper(I) ion.

Cited row: $3d^{7}4s^{2}a{}^4{F}_{9/2}$ at zero spectroscopic wavenumber. This is a measured atomic-level compilation, not an answer set for any examination.

Cited rows: Ag I ground configuration and term, atomic weight, and isotope data.