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At
Astatine
#85 · Reactive Nonmetal
| Mass | 209.98715 u |
| Density | 7.0 g/cm³ |
| Melting | 575.0 K |
| Boiling | 610.0 K |
| Electronegativity | 2.2 |
| Ionization Energy | 899.0 kJ/mol |
| Atomic Radius | 150.0 pm |
| Block | p-block |
| State (RT) | Solid |
| Config | [Xe] 4f14 5d10 6s2 6p5 |