Question

the expression of Wark functions ​

Answer 1

Explanation:

In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e., energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface.

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Work functions of elements.

Ag Nd

4.26 – 4.74 3.2

Al Ni

4.06 – 4.26 5.04 – 5.35

As Os

Answer 2

The work function (or workfunction) is defined as the minimum amount of thermodynamic work (i.e. energy) required to remove an electron from a solid to a point in the vacuum immediately outside the solid surface. The symbol for work function is Φ (uppercase Phi of the Greek alphabet).