Adalbert Farkas, Orthohydrogen, Parahydrogen, and Heavy Hydrogen (1935), is a classic monograph by an early researcher in this area. Isidor Kirshenbaum, Physical Properties and Analysis of Heavy Water (1951), is a comprehensive treatise. Willard F. Libby, Collected Papers, vol. 1, Tritium and Radiocarbon (1981), contains classic articles on tritium dating. E. Anthony Evans, Tritium and Its Compounds, 2nd ed. (1974), is a compact source of information. R.P. Bell, The Proton in Chemistry, 2nd ed. (1973); and Howard K. Rae (ed.), Separation of Hydrogen Isotopes (1978), are also useful.
Structures-assumed-by-hydrogen-and-carbon-molecules-in-four-commonStructures assumed by hydrogen (H) and carbon (C) molecules in four common hydrocarbon compounds.
Balmer-alpha-line-absorption-spectraFigure 1: Balmer-alpha line absorption spectra. (A) The seven allowed transitions between …[Credits : From T.W. Hansch, A.L. Schawlow, and G.W. Series, "The Spectrum of Atomic Hydrogen," copyright by …]
Energy-levels-of-the-hydrogen-atom-according-to-Bohrs-modelEnergy levels of the hydrogen atom, according to Bohr’s model and quantum mechanics using the …[Credits : Encyclopædia Britannica, Inc.]
[Credits : Encyclopædia Britannica, Inc.]
Electron-density-functions-of-a-few-hydrogen-atom-statesFigure 5: Electron density functions of a few hydrogen atom states. Plots of electron …[Credits : Daniel Kleppner and William P. Spencer, Massachusetts Institute of Technology]
Polar-covalent-bond-In-polar-covalent-bonds-such-as-thatPolar covalent bond[Credits : Encyclopædia Britannica, Inc.]
Each-element-has-an-atomic-size-which-is-a-measureEach element has an atomic size, which is a measure of how far away the outermost, or valence, …[Credits : From S.S. Zumdahl, Introductory Chemistry, A Foundation, 2nd ed., copyright © 1993 by …]
Learn what chemical reaction takes place during photosynthesis.[Credits : Acquired from Vast Video]
Uranium is the last naturally occurring element in the periodic table.[Credits : Acquired from Vast Video]
Scientists are working on a way to develop power plants that use nuclear fusion.[Credits : Acquired from Vast Video]
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