Which of the following elements exhibits the | vedclass

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(A) The photoelectric effect is the emission of electrons when electromagnetic radiation,such as light,hits a material. For alkali metals,the ease of

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$Cs$

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(A) The photoelectric effect is the emission of electrons when electromagnetic radiation,such as light,hits a material. For alkali metals,the ease of electron emission depends on the ionization enthalpy. As we move down the group from $Li$ to $Cs$,the atomic size increases and the ionization enthalpy decreases. $Cs$ (Cesium) has the lowest ionization enthalpy among the alkali metals,making it the easiest to lose an electron when exposed to light. Therefore,$Cs$ exhibits the highest photoelectric effect.

Which of the following elements exhibits the highest photoelectric effect?

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