publication . Article . 1915

The Spectra of Hydrogen and Helium

Name: The Spectra of Hydrogen and Helium
Creator: Niels Bohr
Keywords: Multidisciplinary, Space and Planetary Science, Astronomy and Astrophysics

Niels Bohr;

Open Access

Published: 18 Mar 1915

Summary

Abstract

IN a letter to NATURE of February 11, Prof. J. W. Nicholson discusses the recent interesting experiments of Mr. Evans on the spectrum emitted from a vacuum tube containing highly purified helium and subject to a heavy discharge. Evans found that the 4686 series and the Pickering series can be obtained in a helium spectrum showing no trace of the ordinary hydrogen lines. These series were observed a few years ago by Prof. Fowler by sending a heavy discharge through a mixture of hydrogen and helium; previously they had been observed only in star spectra. In addition, Evans observed that under the same conditions as the 4686 series and the Pickering series a new se...

doi: 10.1038/095006a0 , 10.1038/095065a0 , 10.1038/095033b0 ,

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Subjects

free text keywords: Multidisciplinary, Space and Planetary Science, Astronomy and Astrophysics, Bohr model, symbols.namesake, symbols, Helium atom, chemistry.chemical_compound, chemistry, Electron, Spectral line, Hydrogen, chemistry.chemical_element, Rydberg formula, Physics, Atomic physics, Pickering series, Helium, Quantum mechanics, Vacuum tube, law.invention, law, Balmer series

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