At2
1 compound has this formula on CompoundList.
- Molar mass
- 420.00g/mol
- Monoisotopic mass
- 419.9743Da
- Atoms
- 2
- Elements
- 1
The formula At2 describes a molecule made of 2 astatine atoms. It is written in Hill notation: with no carbon present, every element is listed in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- At Astatine × 2100.00%210 × 2 = 420.000 g/mol
Compounds with the formula At2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 1 of 1 compounds
Frequently asked questions
What is the molar mass of At2?
The molar mass of At2 is 420.00 g/mol, calculated from standard atomic weights for 2 astatine atoms. The monoisotopic mass is 419.9743 Da.
How many compounds have the formula At2?
CompoundList lists 1 compound with the molecular formula At2, including Astatine. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.