Argon
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| Argon | |
|---|---|
| Properties | |
| Atomic symbol | Ar |
| Atomic number | 18 |
| Classification | Non-metal |
| Atomic mass | 39.9 amu |
| Other Information | |
| Date of discovery | 1894 |
| Name of discoverer | Sir William Ramsey |
| Name origin | From the Greek argon. |
| Uses | Lighting |
| Obtained from | Air |