Innehållsförteckning
Vad är det tyngsta som finns?
Det tyngsta grundämne som finns i någorlunda kvantiteter i naturen är uran med atomnummer 91.
What does osmium mean?
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 HCP osmium?
hexagonal close-packed (hcp) 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. Osmium is the densest naturally occurring element.
What is osmium used for in fountain pens?
Manufacturers use its alloys with platinum, iridium, and other platinum-group metals to make fountain pen nib tipping, electrical contacts, and in other applications that require extreme durability and hardness. Osmium is among the rarest elements in the Earth’s crust, making up only 50 parts per trillion ( ppt ).
Why is OsO4 called osmium?
After acidification he was able to distill the formed OsO 4. He named it osmium after Greek osme meaning ”a smell”, because of the ashy and smoky smell of the volatile osmium tetroxide. Discovery of the new elements was documented in a letter to the Royal Society on June 21, 1804.
Hur mycket kostar osmium?
Vad kostar Osmium? Priset för rent osmium ligger runt 500 000 kr/kg.
Är guld tyngre än bly?
Guld år en av de allra tyngsta metallerna (nästan dubbelt så tungt som bly). Om man fyller en 1 liters mjölkförpackning med guld, så skulle den väga nästan 20 kg.
Hur mycket väger 3 liter aluminium?
Stål har en densitet på ca 8 kg/l medan aluminium har ca 2,7 kg/l och vatten ca 1 kg/l.
Har atomnummer 92?
I naturen hittas grundämnen med atom nummer upp till uran (92), samt kortlivade isotoper av neptunium (93) och plutonium (94).