Which of the following elements has the highe | vedclass

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(C) The work function is the minimum energy required to eject an electron from the surface of a metal.It is generally higher for transition metals com

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$Cu$

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(C) The work function is the minimum energy required to eject an electron from the surface of a metal.It is generally higher for transition metals compared to alkali metals.Among the given options, $Na$ and $K$ are alkali metals with low work functions.Between $Cu$ and $Ag$, $Cu$ has a higher work function (approximately $4.7 \ eV$) compared to $Ag$ (approximately $4.26 \ eV$).Therefore, $Cu$ has the highest work function value among the choices provided.

Which of the following elements has the highest work function value?

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