Ar18 – Argon
- Atomic Number: 18
- Atomic Symbol: Ar
- Atomic Name: Argon
- Atomic Mass: 39.9
- CPK Hex Color: 80D1E3
- Electron Configuration: [Ne]3s2 3p6
- Electron Negativity:
- Atomic Radius: 188
- Ionization Energy: 15.76
- Electron Affinity:
- Oxidation States: 0
- Standard State: Gas
- Melting Point: 83.8
- Boiling Point: 87.3
- Density: 0.0017837
- Group Block: Noble gas
- Year Discovered: 1894
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