What is the work function of a metal?
Correct Answer: Minimum energy required to remove an electron from a metal's surface.
- Step 1: Understand that metals have electrons that can move around.
- Step 2: Realize that to remove an electron from a metal, you need to provide energy.
- Step 3: The work function is the specific amount of energy needed to take an electron away from the metal's surface.
- Step 4: This energy is the minimum required; if you provide less, the electron will not leave.
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