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September 2, 2015

Homework Help: college: Chemistry

Posted by Mai on Sunday, February 15, 2009 at 2:06am.

I need help on this homework problem and I do not understand how to work on it. Please help me with this problem.

The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34X10^(-19)J. What is the minimum frequency of light required to observe the photoelectric effect in calcium?

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