# What happens to the electrons in compton scattering?

In Compton Scattering, does the electron that is scattered leaves the atom in which it orbited around, i.e. is it ionized from its atom?

I would add to Victor's answer that Compton scattering refers to one particular regime of photon-electron scattering, in which the energy of the photon becomes comparable to the mass-equivalent energy of the electron. A resting electron has a mass of $511\ \textrm{keV}/c^2$, which means you basically need at least x-rays to see the effect. Any lower energy photons will give you Thomson, Raman, Rayleigh, resonant, or other scattering, depending on the situation. Now, compare the mass energy of the electron to the scale of electron binding energies (typically ~1 eV). Binding energies are so much smaller that Compton scattering will certainly result in ionization.