Tl81 – Thallium
- Atomic Number81
- Atomic SymbolTl
- Atomic NameThallium
- Atomic Mass204.383
- CPK Hex ColorA6544D
- Electron Configuration[Xe]6s2 4f14 5d10 6p1
- Electron Negativity1.62
- Atomic Radius196
- Ionization Energy6.108
- Electron Affinity0.2
- Oxidation States+3, +1
- Standard StateSolid
- Melting Point577
- Boiling Point1746
- Density11.8
- Group BlockPost-transition metal
- Year Discovered1861
Periodic Table of Elements. (2022, December 23). In PubChem and the National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/periodic-table/#view=table