Discovered
1894Density
1.78×10-3 g/cm3Melts
-189.2 °C
- -308.5 °F
- 84.0 °K
Boils
-185.8 °C
- -302.5 °F
- 87.3 °K
Contributed by collector no. 3
The Noble Gas group, in ampoules. There's not much to see here. From left to right: Helium , Neon , Argon , Krypton , Xenon .
Contributed by collector no. 2
Argon gas in an ampoule on top of a plasma globe, glowing a blue-white color
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