Hydrogen is a chemical element with chemical symbol H and atomic number 1. ...
compounds with most non-metallic elements, most of the hydrogen on Earth ...
The Element Hydrogen - Basic Physical and Historical Information.
Element Hydrogen (H), Group 1, Atomic Number 1, s-block, Mass 1.008. Sources,
facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
gas ordinarily is a mixture of two molecular forms, ortho- and para-hydrogen
, which differ by the spins of their electrons and nuclei. Liquid hydrogen
is used in cryogenics and in the study of superconductivity. Hydrogen
is prepared by steam on heated carbon,... More »
Basic information, atomic structure, and table of isotopes.
Let's start our tour of the periodic table with hydrogen (H). Why start with
hydrogen? Hydrogen is the first element in the periodic table and the most basic
This WebElements periodic table page contains the essentials for the element
This WebElements periodic table page contains historical information for the
Hydrogen Element Facts. Data Zone | Discovery | Facts | Appearance &
Characteristics | Uses | Abundance & Isotopes | References. Nasa image: Vast