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### Contents

INTRODUCTION | 1 |

THE CONCEPTIONS OF ATOMIC AND MOLECULAR STRUCTURE | 12 |

THE CANONICAL EQUATIONS | 20 |

Copyright | |

28 other sections not shown

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### Common terms and phrases

according action variables addition angle angular momentum appear approximation assume atom axis becomes calculated centre charge classical co-ordinates complete components consequently consider consideration constant core correction corresponding degeneration depends determined direction distance effect electric electron elements ellipse energy equal equation example exist expression fact field finally fixed follows force formula frequency function further given gives Hamiltonian function hydrogen increase integral introduce leads libration limiting linear magnitude mean mechanics method motion negative normal nuclear observed obtain occur orbit oscillator path periodic perturbed Physik plane positive possible potential principle problem quantities quantum conditions quantum number quantum theory radiation regarding relation relative remain represented respectively result root rotation Rydberg separation simple spectra spectrum structure substitute theoretical theory tion transformation transition unperturbed motion values vector write Zeitschr zero