Shell Structure
Crystal Structure
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| Element | Information |
| Atomic Number: | 18 |
| Symbol: | Ar |
| Name: | Argon |
| Name Origin: | Greek argos, "inactive" |
| Type: | Noble Gas |
| Atomic Mass: | 39.948 |
| Melting Point: | -189 |
| Boiling Point: | -186 |
| Neutrons: | 22 |
| Density: | 1.784 |
| Crystal Structure: | Cubic, face centered |
| Discovered: | 1894 |
| Discoverers: | Identified by Sir William Ramsay & Lord Rayleigh (UK). |
| Other Names: | |
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