Actinium

Actinium By: Bryan Ore Symbol: Ac Atomic #: 89 Atomic mass: 227 amu (Atomic Mass Units) Origin of the element: Greek word actinos (ray) Where is it found? It is not found anywhere, it is man made. Discoverer: Andre Debierne

Date of discovery: 1899 Uses: Thermoelectric power, used in some power plants for heat and electricity.
 * 1) of protons: 89

Physical facts: Melting point: 1050.0 degrees Celsius Boiling point: 3200.0 degrees Celsius
 * 1) of neutrons: 130
 * 2) of electrons: 89

Density: 10.07 g/cm3 Interesting facts: Color: Silvery Crystal structure: Cubic Highly radioacti []