Tantaalin
Tantaalin is a chemical element with the symbol Ta and atomic number 73. It is a rare, hard, blue-grey, lustrous, and very dense transition metal. Tantaalin is highly corrosion-resistant, even in boiling acid, and is therefore used in alloys and for laboratory equipment.
The element was discovered by Anders Gustaf Ekeberg in Sweden in 1802. The name comes from Tantalus,
Tantaalin is found in nature in the mineral tantalite, which is a series of solid solution compounds.
Its most common use is in electronic components, particularly capacitors. These capacitors are used in a wide