Element: argon |
Name : argon |
Symbol : Ar |
Atomicnumber : 18 |
Relativeatomicmass : 39.948 (1) g, r [see notes g r] |
Standardstate : gas at 298 K |
Appearance : colourless |
Classification : Non-metallic |
Groupinperiodictable : 18 |
Groupname : Noble gas |
Periodinperiodictable : 3 |
Blockinperiodictable : p |
Shellstructure : 2.8.8 |
CASRegistry : 7440-37-1 |
Description : Argon is a colourless and odourless gas present to a very small extent in the atmosphere. |