See also:

• Science: Chemistry: Elements: Metalloids  (0)
• Science: Environment: Environmental Health: Toxic Substances: Arsenic  (6)
• Science: Environment: Water Resources: Groundwater: Arsenic Contamination  (12)

ChemGlobe: Arsenic - - Electronic, thermal, and steric data along with an isotope table.

ChemicalElements.com: Arsenic - - Basic information, atomic structure, and isotopes.

EnvironmentalChemistry.com: Arsenic - - Atomic structure, chemical and physical properties, and table of nuclides.

It's Elemental: Arsenic - - Basic physical and historical information.

LANL: Arsenic - - History, properties, and uses.

Lenntech: Arsenic - - Physical data, chemical properties, health and environmental effects.

Periodic Table of the Elements: Arsenic - - Thermal properties, ionisation energies, and reduction potentials.

Radiochemistry of Arsenic - - Full text of the monograph by J. G. Cuninghame (Atomic Energy Research Establishment, Harwell, Didcot, Berkshire, England). [PDF.

USGS - Minerals Information: Arsenic - - Overview and a number of publications in PDF format.

Visual Elements: Arsenic - - Source, biological role, physical information, and key isotopes.

WebElements: Arsenic - - Extensive information on history, uses, occurrence, compounds, and properties of the element.

Wikipedia: Arsenic - - Details the properties of the element, including its history, applications, and characteristics.