Difference between Compton effect and Photoelectric effect

[jonathanpun]

Both Compton effect and photoelectric effect involves collision of photon with a electron. I don't understand why one has scattering but one is simply kicking out electron.

The photoelectric effect said light can transfer it's energy only in quantized units of h bar, so why the photon in Compton effect not transfer all of its energy into the electron, but still remains some?

 

[ZapperZ]

Photoelectric effect involves the whole solid, not just the electron and not just an atom.

Look at the spectrum of both compton electrons and photoemission electrons. They are distinctly different. The spectrum of photoemission electrons carry some information about the solid that it left behind. Compton electrons carry info about the atom only.

Zz.