Thallium
(Redirected from Tl)
| Thallium | |
|---|---|
| Tl | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 81 |
| Atomic mass: | 204.3833 |
| group: | 13 |
| period: | 6 |
| normal phase: | Solid |
| series: | Poor Metals |
| density: | 11.85 g/cm3 |
| melting point: | 577K, 304°C, 579°F |
| boiling point: | 1746K, 1473°C, 2683°F |
| Cd ← In → Sn | |
| Hg ← Tl → Pb | |
| Uub ← Uut → Uuq | |
| Atomic radius (pm): | 190 |
| Bohr radius (pm): | 156 |
| Covalent radius (pm): | 148 |
| Van der Waals radius (pm): | 196 |
| ionic radius (pm): | (+1) 159 |
| 1st ion potential (eV): | 6.11 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p1 | |
| Electrons Per Shell | |
| 2, 8, 18, 32, 18, 3 | |
| Electronegativity: | 1.8 |
| Electron Affinity: | 0.2 |
| Oxidation states: | 3, 1 |
| Magnetism: | ? |
| Crystal structure: | Hexagonal |
Thallium is a Poor Metal in group 13.
It has a Hexagonal crystalline structure.
This element has two stable isotopes: 203 and 205.
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