Electronic, thermal, and steric data along with an isotope table.

History, properties, uses, and production.

Properties of the element, including its history, applications, and characteristics.

Physical data, chemical properties, health and environmental effects.

Extensive information on history, uses, occurrence, compounds, and properties of the element.

Atomic structure, chemical and physical properties, and table of nuclides.

Data tables and historic information.

Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).

Basic information, atomic structure, and isotopes.

Basic physical and historical information.