What are some examples of halogens?
1 Answer
All the group 17 (7B) elements except astatine are definitively considered halogens.
So, fluorine (
Basically the lowdown on astatine's oddball self is:
This person clearly states that although it's just speculation due to his interpretation of someone else's potentially problematic relativistic density functional theory calculations (including the relativistic effects of
#1s# -orbital contraction and spin-orbit coupling)......it is unclear/disputed how "halogenic" the condensed-phase astatine really is (y'know, before it rapidly vaporizes).
I guess its speculated metallic character isn't so surprising though...
- Fluorine is a gas.
- Chlorine is a denser gas.
- Bromine is a liquid.
- Iodine is a solid.
- Astatine has an apparently unknown density for some sources, but here, the melting point is over twice that of iodine...
For now, I think we should put the idea of astatine as a definitive halogen aside.
