X-ray resonant Raman scattering from noble gas atoms and beyond

We discuss general characteristics of the resonant X-ray scattering and briefly illustrate its applications in atomic, molecular and solid state physics by a few selected examples. The Ljubljana high resolution spectrometer set-up is presented, which was recently employed at ELETTRA and ESRF synchrotron beamlines to study X-ray emission of inner-shell excited states of xenon and argon, and of simple sulfur containing molecules and solid compounds.