Ac89 – Actinium
- Atomic Number89
- Atomic SymbolAc
- Atomic NameActinium
- Atomic Mass227.02775
- CPK Hex Color70ABFA
- Electron Configuration[Rn]7s2 6d1
- Electron Negativity1.1
- Atomic Radius260
- Ionization Energy5.17
- Electron Affinity
- Oxidation States3
- Standard StateSolid
- Melting Point1324
- Boiling Point3471
- Density10.07
- Group BlockActinide
- Year Discovered1899
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