Periodic Table of the Elements: Argon
Related article: Periodic Table of the Elements (table)Periodic Table of the Elements
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| Atomic Number: | 18 |
| Atomic Symbol: | Ar |
| Argonargon [Gr.,=inert], gaseous chemical element; symbol Ar; at. no. 18; at. wt. 39.948; m.p. −189.2°C;; b.p. −185.7°C;; density 1.784 grams per liter at STP; valence 0. Argon is a colorless, odorless, tasteless gas occurring in air (of which it constitutes 0. ..... Click the link for more information. | |
| Atomic Weight: | 39.948 |
| Electron Configuration: | 2 · 8 · 8 |