Categories related to Hydrogen : Elements : Chemistry : Science: Websites on Hydrogen: ChemGlobe: Hydrogen Electronic, thermal, and steric data along with basic information. Chemical of the Week: Hydrogen Equations for reactions between hydrogen and other substances. ChemicalElements.com: Hydrogen Basic information, atomic structure, and table of isotopes. EnvironmentalChemistry.com: Hydrogen Atomic structure, chemical and physical properties, and table of nuclides. Especiál Gas Inc.: Hydrogen Numeric data, uses, and general information. Hydrogen Energies and Spectrum The Bohr model for an electron transition in hydrogen between quantized energy levels with different quantum numbers n yields a photon by emission with quantum energy. It's Elemental: Hydrogen Basic physical and historical information. LANL: Hydrogen Brief reference on the element includes discussion of the sources of hydrogen, its current uses, and potential for new energy applications. Lenntech: Hydrogen Physical data, chemical properties, health and environmental effects. Visual Elements: Hydrogen General and physical information, uses, and key isotopes. Wikipedia: Hydrogen Properties of the element, including its history, applications, and characteristics.
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