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Name Tantalum
Symbol Ta
Atomic number 73
Atomic mass 180.9479 amu
Normal state Solid
Classification Transition Metals
Crystal structure Cubic Body Centered
Color Gray
Date of discovery 1802
Name of discoverer Anders G. Ekeberg
Name origin From King Tantalus of Greek mythology
Uses Used in metal alloys. Tantalum pentoxide is used in capacitors, condensers, cutting tools, vacuum tube filaments and in camera lenses to increase refracting power.
Obtained from Occurs chiefly in the mineral tantalite. Always found with niobium.