Pm61 – Promethium
- Atomic Number: 61
- Atomic Symbol: Pm
- Atomic Name: Promethium
- Atomic Mass: 144.91276
- CPK Hex Color: A3FFC7
- Electron Configuration: [Xe]6s2 4f5
- Electron Negativity:
- Atomic Radius: 236
- Ionization Energy: 5.55
- Electron Affinity:
- Oxidation States: 3
- Standard State: Solid
- Melting Point: 1315
- Boiling Point: 3273
- Density: 7.26
- Group Block: Lanthanide
- Year Discovered: 1945
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