Tantalum is a transition metal with an atomic number of 73 that was first discovered in 1802 by Swedish scientist Anders Gustafson Ekeberg, who named it after the Greek god Tantalus. It has a density of 16.654 g/cm3 and a gray color. The most common uses of tantalum include in electronic components like capacitors and in camera lenses and alloys due to its high melting point of 2996°C and boiling point of 5425°C.