  Energy levels, wavelengths, lifetimes and hyperfine structure constants for
the isotopes of the first and second spectra of radium, Ra I and Ra II have
been compiled. Wavelengths and wave numbers are tabulated for 226Ra and for
other Ra isotopes. Isotope shifts and hyperfine structure constants of even and
odd-A isotopes of neutral radium atom and singly ionized radium are included.
Experimental lifetimes of the states for both neutral and ionic Ra are also
added, where available. The information is beneficial for present and future
experiments aimed at different physics motivations using neutral Ra and singly
ionized Ra.
