This process is experimental and the keywords may be updated as the learning algorithm improves. These keywords were added by machine and not by the authors. The last question of this chapter deals with the atomic radius calculated using the Schrödinger equation for hydrogen atom (Sect. 3.3 cover the three experiments that serve as experimental confirmation of Bohr theory: (1) atomic emission and absorption spectra, (2) Moseley experiment on characteristic lines from metallic x-ray targets, and (3) Franck–Hertz experiment. ![]() 3.2 deal with multi-electron atoms and issues related to periodic properties of elements, spectra of characteristic radiation emitted by multi-electron atoms, and the Hartree approximation. Problems in this group also address the corrections to Bohr theory resulting from the finite mass of the nucleus. 3.1 covers one-electron structures in detail and deals not only with hydrogen but also with other one-electron structures, such as one-electron ions and more exotic Bohr-like atomic structures such as positronium, muonium, antihydrogen, etc. At the end of the chapter, problems also address issues related to multi-electron atoms and experimental confirmation of the Bohr atomic theory. The problems of this chapter concentrate on concepts that Bohr enunciated 100 years ago for one-electron structures to predict accurately the radius of electron orbits, velocity of electron in allowed orbit, binding energy of electron while in allowed orbit, as well as photon spectra emitted by excited one-electron atoms. The model is based on four postulates that combine classical mechanics with the concept of angular momentum quantization. Bohr combined Rutherford’s concept of the nuclear atom with Planck’s idea of quantized nature of the radiation process and developed from first principles an atomic model that successfully deals with one-electron structures, such as the hydrogen atom. ![]() Bohr’s model of the atom describes electrons orbiting in stable energy. In these orbits, electrons exist in stationary states and do not emit energy. Electrons revolve around the nucleus in circular orbits with discrete radii and quantised energies. Chapter 3 consists of 21 problems that cover 4 sections devoted to the Rutherford-Bohr model of the atom that Bohr introduced in 1913. Niels Bohr proposed three postulates in his atomic model: 1.
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