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springee
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Homework Statement
Calculate the wavelength of light needed to excite a Li2+ ion from the 4s to the 5d orbital. Report your answer with 3 significant figures.
Homework Equations
E=hc/lambda
lambda=hc/E
The Attempt at a Solution
I think that the above equations are supposed to be used to figure out the wavelength. However, I need to figure out the energy (E) first. I don't know how to do this.
Can this be calculated just thinking of the orbitals as excited states??