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The letter O was already used as the symbol for oxygen. Therefore the symbol for Osmium was the first two letters of the element's name.

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What is the atomic number of osmium?

The atomic symbol of osmium is Os. The Atomic number of Osmium is 76. The atomic weight of Os is 190.23 grams per mole. 99% pure Osmium powder is around $100/gram.See the Web Links to the left of this answer for a periodic table with more information about this element!


What is atomic number of osmium?

The atomic symbol of osmium is Os. The Atomic number of Osmium is 76. The atomic weight of Os is 190.23 grams per mole. 99% pure Osmium powder is around $100/gram.See the Web Links to the left of this answer for a periodic table with more information about this element!


What is the atomic mass of osmium?

The atomic mass of osmium (Os) is 190.23 grams per mole.


Is osmium an element or a compound or a homogeneous mixture or a heterogeneous mixture?

Osmium is element 76, one of the "Platinum Group Metals".


Is osmium a compound?

Os is the symbol for Osmium, a transition metal. It is an element.


Is osmium an element?

Yes, osmium is an element. It is a transition metal with the atomic number 76 and symbol Os. Osmium is one of the densest elements and is commonly used in alloys and in the production of certain alloys.


What is the Os chemical symbol for?

The chemical symbol for Osmium is Os. It is a hard and dense transition metal known for its high density and resistance to corrosion. Osmium is commonly used in alloys to make fountain pen tips, instrument pivots, and electrical contacts.


What is the symbol and atomic number for an isotope with an mass number of 191 containing 115 neutrons?

This an isotope of osmium, osmium-191. The symbol is 19176Os.


What mineral starts with o?

Osmium is a mineral. It is a chemical element and has the symbol Os.


What element has the average atomic mass of 190.2?

Arsenic has an atomic mass of 74.9216 rounded to 74.922. It's chemical symbol is-As-and it's atomic number is 33.


Give an example of osmium?

Osmium is a naturally occurring chemical element with the symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal. An example of osmium is osmium tetroxide (OsO4), which is a highly toxic and volatile compound used in various chemical reactions, particularly in organic synthesis and staining biological samples for electron microscopy.


What is Osmium Tetroxide made of?

Osmium is a chemical element that has the symbol Os and atomic number 76. So it is made of itself.Individual atoms are, as usual made up of protons, neutrons and electrons. The protons and neutrons are made up of quarks.That aside, see the first paragraph in this answer.