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The energy levels of an atom of element X are shown in the diagram. Which one of the level transitions will result in the emission of photons of wavelength 620 nm? Support your answer with mathematical calculations. |
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Answer» E = hc /λ = 6.6. x 10-34 x 3 x 108 / 620 x 10-9 = 3.2 x 10-19 J = 3.2 x 10-19 / 1.6 x 10-19 = 2 eV This corresponds to the transition "D" |
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