See also:

• Science: Chemistry: Elements: Nonmetals  (4)
• Science: Technology: Energy: Hydrogen  (127)

» 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.