Its chemical characteristics resemble those of niobium, the element above it in group Vb of the periodic table .
Pure tantalum is extremely ductile and can be drawn into a very thin wire.
Tantalum is obtained chiefly from the mineral tantalite, although it also occurs in euxenite, samarskite, and some other rare minerals. The major source of tantalum ore is Africa, although some is mined in Canada. Major uses of tantalum include electrolytic capacitors, chemical equipment, and parts for vacuum furnaces, aircraft, and missiles. Tantalum was used in the filaments of electric light bulbs and electronic tubes but has been largely replaced by tungsten for these uses. Because it is unaffected by body fluids and causes no adverse tissue reactions, it is used in dental and surgical instruments and prostheses.