bohr model
81Sommerfeld, Arnold — ▪ German physicist born Dec. 5, 1868, Königsberg, Prussia [now Kaliningrad, Russia] died April 26, 1951, Munich German physicist whose atomic (atom) model permitted the explanation of fine structure spectral lines. After studying… …
82List of chemical element name etymologies — This is the list of etymologies for all chemical element names: Name Symbol Language of origin Word of origin Meaning Symbol origin Description Actinium Ac Greek ἀκτίς (aktis) beam Greek aktinos ἀκτίς, ἀκτῖνος (aktis; aktinos), meaning beam (ray) …
83Lyman-alpha line — In physics, the Lyman alpha line is a spectral line of hydrogen, or more generally of one electron ions, in the Lyman series, emitted when the electron falls from the n = 2 orbital to the n = 1 orbital, where n is the principal quantum number. In …
84H-alpha — In physics and astronomy, H alpha, also written Hα, is a specific emission line created by hydrogen at 6562.8 Angstroms.According to the Bohr model of the atom, electrons exist in quantized energy levels surrounding the atom s nucleus. These… …
85Principal quantum number — In atomic physics, the principal quantum number symbolized as n is the first of a set of quantum numbers (which includes: the principal quantum number, the azimuthal quantum number, the magnetic quantum number, and the spin quantum number) of an… …
86Untriseptium — | |Untriseptium (pronEng|ˌʌntraɪˈsɛptiəm) is a chemical element which has not yet been observed to occur naturally or be synthesised. Its atomic number is 137 and symbol is Uts.The name Feynmanium (symbol Fy ) is also informally used, because of… …
87Arthur Erich Haas — (April 3 1884, Brno February 20 1941, Chicago) was an Austrian physicist, noted for a 1910 paper he submitted in support of this habilitation as Privatdocent at the University of Vienna that outlined a treatment of the hydrogen atom involving… …
88Natural units — In physics, natural units are physical units of measurement based only on universal physical constants. For example the elementary charge e is a natural unit of electric charge, or the speed of light c is a natural unit of speed. A purely natural …
89Hartree-Fock — In computational physics and computational chemistry, the Hartree Fock (HF) method is an approximate method for the determination of the ground state wavefunction and ground state energy of a quantum many body system.The Hartree Fock method… …
90Adolf Kratzer — B. Adolf Kratzer [ The book (Hettema, 2001, p. 199) published the article On the Interpretation of Some Appearances in the Molecular Spectra , by Friedrich Hund in Göttingen. The paper cites the article: B. A. Kratzer “Die Gesetzmässigkeiten in… …
