Science: Chemistry: Elements: Hydrogen
Electronic, thermal, and steric data along with basic information.
Chemical of the Week: Hydrogen
Equations for reactions between hydrogen and other substances.
Basic information, atomic structure, and table of isotopes.
Atomic structure, chemical and physical properties, and table of nuclides.
Especiál Gas Inc.: Hydrogen
Numeric data, uses, and general information.
Data tables and historic 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.
Brief reference on the element includes discussion of the sources of hydrogen, its current uses, and potential for new energy applications.
Physical data, chemical properties, health and environmental effects.
Visual Elements: Hydrogen
General and physical information, uses, and key isotopes.
Properties of the element, including its history, applications, and characteristics.
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