Lenntech: Chromium (Popularity: )

Physical data, chemical properties, health and environmental effects.

EnvironmentalChemistry.com: Chromium (Popularity: )

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

Visual Elements: Chromium (Popularity: )

General and physical information, source, uses, key isotopes, and ionisation energies.

ChemicalElements.com: Chromium (Popularity: )

Basic information, atomic structure, and isotopes.

USGS Minerals Information: Chromium (Popularity: )

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

Wikipedia: Chromium (Popularity: )

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

WebElements: Chromium (Popularity: )

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

Radiochemistry of Chromium (Popularity: )

Full text of the monograph by J. Pijck (Laboratory for Analytical Chemistry, University of Ghent, ...

It's Elemental: Chromium (Popularity: )

Basic physical and historical information.