SABIC 01-12-2011 Notes

SABIC 01-12-2011 Notes - Another important experiment that...

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The Atomic Spectrum of Hydrogen Another important experiment that helped shape the current understanding of the structure of the atom involved the emission of electromagnetic radiation from excited hydrogen atoms. H 2 2H H H* H H* + Energy H* - Energy H Absorption Emission Excited State Ground State
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Con6nuous Spectrum When passed through a prism, white light is shown to contain all of the possible wavelengths of the visible spectrum: Split white light into ROYGBIV with prism or diffraction grating This is NOT what is observed in the emission spectrum of hydrogen
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The Hydrogen Line Spectrum When the radiation emitted from the excited hydrogen sample is passed through a prism, four narrow bands of visible light are observed, generating a line spectrum: Radiation of specific frequency is emitted, meaning that excited states of very specific energies are being formed.
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The Atomic Spectrum of Hydrogen Importance of the line spectrum of hydrogen: Only certain energies are allowed for
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