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Tantalum is a chemical element; it has symbol Ta and atomic number 73. It is named after Tantalus, a figure in Greek mythology. [11] Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as components of strong high-melting ...
There are 2 parts per million of tantalum in the Earth's crust, making it the 51st most abundant element there. Soil contains on average 1 to 2 parts per billion of tantalum, and seawater contains 2 parts per trillion of tantalum. A typical human contains 2.9 parts per billion of tantalum. Tantalum is found in the minerals tantalite and ...
Pages in category "Tantalum compounds" The following 16 pages are in this category, out of 16 total. This list may not reflect recent changes. O. Organotantalum ...
Natural tantalum (73 Ta) consists of two stable isotopes: 181 Ta (99.988%) and 180m Ta (0.012%).. There are also 35 known artificial radioisotopes, the longest-lived of which are 179 Ta with a half-life of 1.82 years, 182 Ta with a half-life of 114.43 days, 183 Ta with a half-life of 5.1 days, and 177 Ta with a half-life of 56.56 hours.
Requirements increase from 1,000 milligrams daily to 1,200 once you reach age 70. ... As of 2018, 37 percent of all men over age 50 used statins, a drug that helps to lower cholesterol and the ...
Coltan is used primarily for the production of tantalum capacitors, used in mobile phones and almost every kind of electronic device. [ 31 ] [ 32 ] [ 33 ] Niobium and tantalum have a wide range of uses, including refractive lenses for glasses, cameras, phones and printers.
An online survey conducted by the Cleveland Clinic of 1,174 men 18 years or older, found that 72% of men would rather do household tasks, such as cleaning the bathroom or mowing the lawn, than see ...
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.