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A typical electron in a piece of metallic sodium has energy -Eg compared to a free electron, where Eŋ is the 2.7 eV work function of sodium. Part A Al whal distance beyond the surface of the melal is the electron's probabilily density 25% of its value at lhe surface? Express your answer to two significant figures and include the appropriate units. d = Value Units Submit Request Answer Part B How does this distance compare to the size of an atom? O da 10rNa O ds PNa Submit Previous Answers v Correct Provide Feedback
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Transcribed Image Text:A typical electron in a piece of metallic sodium has energy -Eg compared to a free electron, where Eŋ is the 2.7 eV work function of sodium. Part A Al whal distance beyond the surface of the melal is the electron's probabilily density 25% of its value at lhe surface? Express your answer to two significant figures and include the appropriate units. d = Value Units Submit Request Answer Part B How does this distance compare to the size of an atom? O da 10rNa O ds PNa Submit Previous Answers v Correct Provide Feedback
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