Astatine

From Lunarpedia
(Redirected from At)
Jump to: navigation, search
Astatine
At
In situ availability:
Necessity:
Atomic number: 85
Atomic mass: [210]
group: 17
period: 6
normal phase: Solid
series: Halogens
density: No data
melting point: 575K,
302°C,
576°F
boiling point:
TeIXe
Po ← At → Rn
UuhUusUuo
Atomic radius (pm):
Bohr radius (pm):
Covalent radius (pm):
Van der Waals radius (pm):
ionic radius (pm): -
1st ion potential (eV): -
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d10
6s2 6p5
Electrons Per Shell
2, 8, 18, 32, 18, 7
Electronegativity: 2.2
Electron Affinity: 2.8
Oxidation states: +/-1, 3, 5, 7
Magnetism: ?
Crystal structure:

Astatine is a Halogen in group 17. It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 210. This element has no stable isotopes.




This article is an automatically generated stub. As such it may contain serious errors.
You can help Lunarpedia by expanding or correcting it.