Roentgenium

WebElements: Scandium WebElements: Scandium- Extensive information on history, uses, occurrence, compounds, and properties of the element. Wikipedia: Scandium Wikipedia: Scandium- Properties of the element, including its history, applications, and characteristics. EnvironmentalChemistry.com: Scandium EnvironmentalChemistry.com: Scandium- Atomic structure, chemical and physical properties, and table of nuclides. USGS Minerals Information: Scandium USGS Minerals Information: Scandium- Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). ChemicalElements.com: Scandium ChemicalElements.com: Scandium- Basic information, atomic structure, and isotopes. It's Elemental: Scandium It's Elemental: Scandium- Basic physical and historical information.