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August 2, 2015

Homework Help: Chemistry

Posted by Brenda on Saturday, January 19, 2013 at 7:13pm.

a.) Caculate the energy of light emitted when an electron moves from n=2 to n=1 in the hydrogen atom.
b.) Caculate the energy of light emitted when an electron moves from n=4 to n=2 in the hydrogen atom.
c.) How many total different light energies can be emitted from an electron moving down from n=5?
I don't know the equation for a.) and b.), and I don't understand c.). Help please!

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