Argon
| Use attributes for filter ! | |
| Symbol | Ar |
|---|---|
| Atomic mass | 39.948 u |
| Atomic number | 18 |
| Electron configuration | [Ne] 3s²3p⁶ |
| Electrons per shell | 2,8,8 |
| Discoverer | John William Strutt, 3rd Baron Rayleigh |
| William Ramsay | |
| Boiling point | -185.8 °C |
| Downwards | Argon‑40 |
| Argon‑36 | |
| Argon‑39 | |
| Argon‑41 | |
| Ar model | Play |
| Date of Reg. | |
| Date of Upd. | |
| ID | 3364281 |
About Argon
Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third-most abundant gas in Earth's atmosphere, at 0.934%.