Source, biological role, physical information, and key isotopes.
Full text of the monograph by J. G. Cuninghame (Atomic Energy Research Establishment, Harwell, Didcot, Berkshire, England). [PDF]
Thermal properties, ionisation energies, and reduction potentials.
Basic physical and historical information.
Basic information, atomic structure, and isotopes.
Overview and a number of publications in PDF format.
Data tables and historic information.
Atomic structure, chemical and physical properties, and table of nuclides.
Extensive information on history, uses, occurrence, compounds, and properties of the element.
Physical data, chemical properties, health and environmental effects.
Science /
Chemistry /
Elements /
Metalloids
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