How did osmium get discovered?

Discovery: British chemist Smithson Tennant discovered osmium in 1803 in the residue left when crude platinum was dissolved by aqua regia. Osmium is produced as a by-product of nickel refining. While there is little osmium in these products, it can be easily obtained from processed nickel ores.

Who discovered the element osmium?

Smithson Tennant
Osmium/Discoverers
Both osmium and iridium were discovered simultaneously in a crude platinum ore by the English chemist Smithson Tennant in 1803. Osmium and iridium were discovered at the same time by the British chemist Smithson Tennant in 1803.

What is the origin of the symbol for osmium?

when liquid (at m.p. ) Osmium (from Greek ὀσμή, osme, ‘smell’) is a chemical element with the 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.

What is an interesting fact about osmium?

Osmium is the rarest of all stable elements. It is only found at 0.05 parts per billion in the Earth’s crust. Osmium occurs naturally as either a free element or in naturally occurring alloys. Just like the other members of the platinum metals group, osmium is found naturally alloyed with both nickel and copper.

What is the group name of osmium?

platinum metals
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.

How many isotopes does osmium have?

seven
Osmium has seven naturally-occurring isotopes, all of which are stable: 184Os, 186Os, 187Os, 188Os, 189Os, 190Os, and (most abundant) 192Os.

What is the heaviest metal on earth?

Osmium
Answer 1: Osmium is the most dense metal! Many people are familiar with lead (11.3 kg/L), but osmium is twice as dense (22.6 kg/L)!

What is the 72nd element?

The element is number 72 in the periodic table, and is called hafnium. It takes its name from hafnium, the old Latin name for Copenhagen which is the city in which it was first isolated in 1922.

How did iridium get its name?

The name iridium, derived from the Greek word iris (“rainbow”), refers to the various colours of its compounds. Natural iridium consists of a mixture of two stable isotopes, iridium-191 (37.3 percent) and iridium-193 (62.7 percent).

Is it possible to break osmium?

Osmium is unworkable as a metal. It cannot be melted and shaped like most metals. Because it is unworkable, it has very few practical uses.

What’s the hardest stone?

Diamonds
Diamonds are the hardest stone, while talc (for example) is a very soft mineral. The scale by which the hardness of minerals is measured is the Mohs Hardness Scale, which compares the resistance of a mineral to being scratched by ten standard reference minerals that vary in hardness.