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11. Calculate the energy of one mole of photons of blue light with a wavelength of 450 nm 12. Calculate the frequency and wavelength of the light emitted by a H atom when the electron falls from the n = 5 to the n = 3 level 13. Write the electron configurations for: you may write the fuil electron configuration or use the noble gas inner shell notation) A. Fluorine (F) B. Calcium (Ca) C. Chromium (Cr) D. Zinc (Zn) E. Bromine (Br) F. Silver (Ag) G. Lead (Ph) 14. Give brief descriptions or explanations of the following terms The Pauli principle Hunds rulde The Bohr atom Paamagnctisn (in an atom) Diamagnetism (in an atom)

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23 23 3P 266l x10 12 -1d ΔΕ -8 s 1282 = 1282mmE. Bionlne (x-35) -n11 The coht on ca- E3 8h a net Sfiw

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