The photoelectric effect is maximum in which | vedclass

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Question

(A) The photoelectric effect is the emission of electrons when electromagnetic radiation,such as light,hits a material. Group $I$ elements (alkali met

Vedclass · Accepted Answer

$Cs$

Vedclass · Answer

(A) The photoelectric effect is the emission of electrons when electromagnetic radiation,such as light,hits a material. Group $I$ elements (alkali metals) are highly electropositive,meaning they have low ionization energy. As we move down the group from $Li$ to $Cs$,the ionization energy decreases,making it easier for the valence electron to be ejected. Therefore,$Cs$ (Cesium) has the lowest ionization energy among the given options,making the photoelectric effect maximum in $Cs$.

The photoelectric effect is maximum in which of the following elements?

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