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At what atomic number would a …

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At what atomic number would a transition from n=2 to n=1 energy level result in emission of photon of wavelength = 3×10^-8

    • Posted by Tanashree Vimalan 5 years, 7 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

    The Reidberg wavelength formulae:
    1/ 3.8×10−8 ​=109678(1−1/4​)×Z2
    Z2=405
    Z = 20

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