Neptunium

See also:

• Science: Chemistry: Elements: Actinides  (1)

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

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

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

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

LANL: Neptunium - - Basic information and history.

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

Visual Elements: Neptunium - - General and physical information, source, and key isotopes.

WebElements: Neptunium - - Extensive information on history, uses, compounds, and properties.

Wikipedia: Neptunium - - Notable characteristics, history, occurrence, isotopes, and weapons applications.