Osmium (from Ancient Greek ὀσμή (osmḗ) 'smell') is a chemical element; it has symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally occurring element.

2025年2月28日 · osmium (Os), chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table and the densest naturally occurring element. A gray-white metal, osmium is very hard, brittle, and difficult to work, even at high temperatures.

Osmium is a Nobel metal and belongs to the platinum family. It is the densest and corrosion-resistant element. It was discovered in 1803. Osmium has an intertwined history with platinum and dates to the late 17 th century.

2019年7月3日 · Osmium is an extremely heavy silver-blue metal with atomic number 76 and element symbol Os. While most elements aren't know for the way they smell, osmium emits a characteristic unpleasant smell. The element and its compounds are highly toxic.

2023年11月18日 · Osmium is an extremely hard and dense metallic element with symbol Os and atomic number 76. Although it is a rare element, you encounter it in daily life in ballpoint pens and electrical contacts. English chemist Smithson Tennant discovered osmium and iridium in a sample of platinum ore in 1803.

Osmium (pronounced as OZ-mee-em) belongs to the family of transition metals and denoted by the chemical symbol Os. It has thirty-four isotopes out of which seven occur naturally with osmium-92 having an abundance of 40.78% in the earth’s crust [1, 3].

Osmium is a chemical element with symbol Os and atomic number 76. Classified as a transition metal, Osmium is a solid at room temperature. [Xe]6s 2 4f 14 5d 6. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.

Osmium is a lustrous & silvery metal taking a spot in the periodic table with an atomic number of 76. Learn the uses of osmium, density of osmium & many more.

Osmium is a bluish-white, shiny metal with a melting point of about 3,000°C (5,400°F) and a boiling point of about 5,500°C (9,900°F). Its density is 22.5 grams per cubic centimeter. These numbers are the highest of any platinum metal.

Osmium (3+) is an osmium cation and a monoatomic trication. Osmium is an element with atomic symbol Os, atomic number 76, and atomic weight 190.23. Osmium is a mineral with formula of Os. The corresponding IMA (International Mineralogical Association) number is IMA1991 s.p.. The IMA symbol is Os. View More... See also: ... View More ... osmium.