Search results
Results from the WOW.Com Content Network
Tantalum was discovered in Sweden in 1802 by Anders Ekeberg, in two mineral samples – one from Sweden and the other from Finland. [15] [16] One year earlier, Charles Hatchett had discovered columbium (now niobium). [17] In 1809, the English chemist William Hyde Wollaston compared the oxides of columbium and tantalum, columbite and tantalite.
Group 5 is the new IUPAC name for this group; the old style name was group VB in the old US system (CAS) or group VA in the European system (old IUPAC). Group 5 must not be confused with the group with the old-style group crossed names of either VA (US system, CAS) or VB (European system, old IUPAC); that group is now called the pnictogens or ...
Tantalus (Ancient Greek: Τάνταλος Tántalos), also called Atys, was a Greek mythological figure, most famous for his punishment in Tartarus: for revealing many secrets of the gods and for trying to trick them into eating his son, he was made to stand in a pool of water beneath a fruit tree with low branches, with the fruit ever eluding his grasp, and the water always receding before he ...
Tantalum (element "Ta"), a metallic element; Tantalis; Tantalize (disambiguation) This page was last edited on 30 November 2023, at 19:16 (UTC). Text is available ...
Aam Aadmi-- literally meaning "ordinary person" in Hindi; Ashok Kumar has been used in multiple court cases as a placeholder name as well [31] In Pakistan, mainly where the languages are more influenced by Persian, they use Falan as a placeholder more commonly
The mineral group tantalite [(Fe, Mn)Ta 2 O 6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal.It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides.
Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum-dominant mineral is tantalite. [1]
Rohit (Devanagri: रोहित), pronounced [ˈroːɦɪt̪]) is a given name, typically male, [1] used among Indian people. It is also used in some parts of Nepal. It is mostly used by Jains, Hindus, and Sikhs. The word rohit signifies the color red. It is derived from Sanskrit, meaning 'the first rays of the sun'. The early morning sunlight ...