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    Calculating Emission Wavelength for Excited Atoms at 3.031x10^-19 J Energy Level

    Problem Statement: A sample of excited atoms lies 3.031×10^−19 J above the ground state. What is the emission wavelength of these atoms? Relevant Equations: E=hc/λ λ=hc/E I'm stuck on the first part. i.e; something / 3.031x10^-19J
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