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6 October, 11:30

Calculate the energy gap between the excited and ground states for the sodium ion.

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  1. 6 October, 11:56
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    Answer: Ground state of Hydrogen = - 13.6 eV Energy of photon emission: E = hf = hc/Î" = 6.6256E-34 (3E8) / 680E-9 E = 0.0292E-17 J (1 eV/1.6E-19 J) = 1.825 eV E (photon) = 1.825 eV Bandgap energy: Î"E = E â€" Eo = 1.825 â€" (-13.6) = 15.425 eV
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