4 posts • Page 1 of 1
Threshold energy is the amount of energy it took to remove an electron from a metal surface in the photoelectric effect experiment. Is ionization energy the same principle as threshold energy since it's the amount of energy needed to remove an electron from an atom? Or are they two different concepts? Thanks
They are the same conceptually in that there is a certain criteria/threshold that needs to be met, however, in lecture he mentioned that while the photoelectric effect involves the removal of an electron from a solid metal, ionization energy would be the removal of an electron from an atom/metal in the gas state.
They are similar in that both of them involve energies reaching a certain magnitude before electrons can be removed. However, threshold energy refers to solid metals, whereas ionization energy refers to removing an electron in the gas phase. Hope this helps!
Who is online
Users browsing this forum: No registered users and 1 guest