Question

Electrons are emitted from which shell during photoelectric effect?explain.

Answer 1

iii

Answer 2

The photoelectric effect occurs in two stages. First, the photon takes out a bound electron in one atom. In the case of gamma photons, it is usually an electron belonging to the innermost layers L or K. Then the atom that has lost one of its inner electrons is left in an excited state. An electron from an outer layer moves to occupy the vacancy left by the ejected electron. If the ejected electron belonged to the K-shell, an X-ray is emitted during the transition.

Answer 3

i just wanted to add to @taramgrant0543664 's answer that it depends on the energy of photon
if the energy of the photon is greater like that of the gamma photon, as she said, the electron from the inner shells are emitted as they require greater energy to leave their atom , as they are nearer to the positively charged nucleus
if any energy of the photon remains unused after the ejection of the electron, then the energy is taken up by the atom as it's kinetic energy

Answer 4

Thanks for the medal @taramgrant0543664

Answer 5

No problem @rajat97 thanks for adding to the answer!