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Ruthenium red, [ (NH 3) 5 Ru-O-Ru (NH 3) 4 -O-Ru (NH 3) 5] 6+, is a biological stain used to stain polyanionic molecules such as pectin and nucleic acids for light microscopy and electron microscopy. [64] The beta-decaying isotope 106 of ruthenium is used in radiotherapy of eye tumors, mainly malignant melanomas of the uvea. [65]
As of 2020, the most expensive non- synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.
Standard atomic weight Ar° (Ru) 101.07 ± 0.02[2] 101.07 ± 0.02 (abridged) [3] view. talk. edit. Naturally occurring ruthenium (44 Ru) is composed of seven stable isotopes (of which two may in the future be found radioactive). Additionally, 27 radioactive isotopes have been discovered. Of these radioisotopes, the most stable are 106 Ru, with ...
In 2021, the forum was held from the 22nd to the 28th of August. [5] [6]The Russian Ministry of Defence (MO) signed 41 contracts worth RUB500 billion (US$8.3 billion) with 27 defense enterprises during Army 2021 for the delivery of 1,300 new weapon systems and the refurbishment of 150 existing systems, while Rostec's Rosoboronexport arms exporter signed deals worth EUR2 billion (US$2.04 ...
primordial element. synthetic element. Group 8 is a group (column) of chemical elements in the periodic table. It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs). [1] ". Group 8" is the modern standard designation for this group, adopted by the IUPAC in 1990. [1] It should not be confused with "group VIIIA" in the CAS system ...
Ru 3 (CO) 12 + n L → Ru 3 (CO) 12-n L n + n CO (n = 1, 2, or 3) where L is a tertiary phosphine or an isocyanide. It forms complexes with acenaphthylene. [7] Ru 3 (CO) 12 forms a variety of alkene complexes, some where the Ru3 core remains intact but often with fragmentation. Upon treatment with 1,5-cyclooctadiene gives the monoRu tricarbonyl ...
The atomic radius of a chemical element is the distance from the center of the nucleus to the outermost shell of an electron. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius. Depending on the definition, the term may apply only to isolated atoms, or also to atoms in ...
The Creutz–Taube ion is the metal complex with the formula { [Ru (NH 3) 5] 2 (C 4 H 4 N 2)} 5+. This cationic species has been heavily studied in an effort to understand the intimate details of inner sphere electron transfer, that is, how electrons move from one metal complex to another. The ion is named after Carol Creutz, who first prepared ...