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