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Rhenium has one stable isotope, rhenium-185, which nevertheless occurs in minority abundance, a situation found only in two other elements (indium and tellurium). Naturally occurring rhenium is only 37.4% 185 Re, and 62.6% 187 Re, which is unstable but has a very long half-life (~10 10 years).
It is found in low concentrations with many other metals, in the ores of other refractory metals, platinum or copper ores. It is useful as an alloy to other refractory metals, where it adds ductility and tensile strength. Rhenium alloys are being used in electronic components, gyroscopes and nuclear reactors. Rhenium finds its most important ...
They also found rhenium in gadolinite and molybdenite. [5] In 1928 they were able to extract 1 gram of the element by processing 660 kg of molybdenite. In 2020 a memorial medal of the discovery was issued by ISTR (art-designer: Igor Petrov).
It turns out he found a 4.87-carat diamond in the shape of a pyramid — the largest diamond registered there since 2020, officials say. “Mr. Evans’ diamond is spectacular to see.
Mistakes happen on live TV, and Cher’s Today show flub was nothing short of hilarious. Cher, 78, accidentally dropped an F-bomb on air while chatting with Hoda Kotb about her new book, Cher: The ...
It is the raw material for all rhenium compounds, being the volatile fraction obtained upon roasting the host ore. [26] Rhenium, in addition to the +4 and +7 oxidation states, also forms a trioxide. It can be formed by reducing rhenium(VII) oxide with carbon monoxide at 200 C or elemental rhenium at 4000 C. [27] It can also be reduced with ...
This article originally appeared on USA TODAY: Arkansas police name suspect in 6-year-old ... Baidu buys JOYY's China live-streaming unit for $2.1 billion in digital video push. ... The Today Show.
A wide array of rhenium borides have been investigated including Re 3 B, Re 7 B 3, Re 2 B, ReB, Re 2 B 3, Re 3 B 7, Re 2 B 5, ReB 3 and ReB 2. Each of these materials has their own set of properties and characteristics. Some show promise as superconductors and some have unique elastic and electronic properties, but the most relevant to ...