Toicnes and Schawlow Microwave Spectroscopy. White. Introduction to Atomic Spectra. The late F. K. Richtmyer was Consulting Editor of the series from its. INTRODUCTION. TO. ATOMIC SPECTRA. BY. HARVEY ELLIOTT WHITE, PH.D,. Assistant Professor of Ph ysics, at the. University of California. McGRAW-HILL. – Buy Introduction to Atomic Spectra book online at best prices in india on Read Introduction to Atomic Spectra book reviews & author.

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Values of the azimuthal quantum number are given in the follow- ing table for each of these models. Like the alkali metals each of these atoms gives rise to four chief series of spectrum lines: This interval occurs in each doublet between the fainter of the two strong lines and the next to the weakest satellite.

Screening Doublets and the Irregular-doublet Law. Asymmetry and Pressure Shift. The wave equation in this form may be solved by separating it into three total differential equations. I doublets of the alkali metals. He therefore could write Eqs. X, is the number of Zeeman levels into which a level j is split when introduvtion atom is placed in a magnetic field. The theoretical intensities are extremely useful, however, in making identifications in spectra not yet analyzed.

This will be given in Sec.

### Full text of “Introduction to Atomic Spectra”

Stomic 1 was not long in coming forward with the theory that the sun is surrounded by layers of gases acting as absorbing screens for the bright lines emitted from the hot surfaces beneath. Indicate clearly the intervals illustrating the Rydberg-Schuster and Runge laws.

The Irregular- doublet Law in Complex Spectra. Paschen-Back Effect of a Principal-series Doublet.

Three-dimensional curves are obtained by rotating each figure about its vertical axis. Spetra, on the classical theorj’, model a, the maximum electron-nuclear distances attained by the valence electron of sodium in the first 10 s orbits.

The strongest lines in any doublet arise from transitions in which j and I change in the same way. With the value of a from Eq.

Neither one of these patterns h.f.white ever been resolved mto more than two components.

### Introduction to atomic spectra | Open Library

Quantum mechanical Model of Helium. IV of this chapter each of these three factors will be treated separately in some detail and then compared with the Bohr-Sommerfeld orbits.

The general abbreviated notation of series terms is given in the following table along with the early schemes used by Fowler h.ewhite Paschen. We shall try, however, to think, in so far as seems advisable in this 1 See Back, E. The potential energy 1 For the quantum-mechanics formula giving the polarization energy see L.

Soc, A, ; A, ; see also Darwin, C. The electron configurations and the corresponding states for elements in the h.r.white period are designated as follows: Similarly the precession frequency Ha TI e H.e.whtie is interesting to note in passing that the frequency of precession is independent of the orientation angle between the orbit normal and the field direction see Fig. For such an oscillator the position of the mass FlG – 2.

## Introduction to Atomic Spectra

Such an electron is called a 2p electron. The double peaks in Fig. It should be pointed out at the outset, however, that the introduction of a third quantum number does not change the size Sec. General Characteristics of Sommerfeld’s Elliptic Orbits. According to the one system, the numerical value of k is given as a subscript of the numerical value of n.

These are the elements in the third group of the periodic table Table 5. Although all S levels are single, their doublet nature will later be seen to reveal itself when the atom is placed in a magnetic field. A suitable idealized model was first put forward by Schrodinger 2 in which the core elec- trons were thought of as being distrib- uted uniformly over the surface of one or more concentric spheres.