Goldschmidt Classification: atmophile
Gas-loving; gaseous under standard conditions; are either gases or form volatile hydrides.
2HeHeliumcolorless gas, exhibiting a gray, cloudy glow 6CCarbonblack, metallic-looking (graphite); clear (diamond) 10NeNeoncolorless gas exhibiting an orange-red glow when placed in an electric field 18ArArgoncolorless gas exhibiting a lilac/violet glow when placed in an electric field 36KrKryptoncolorless gas, exhibiting a whitish glow in an electric field 54XeXenoncolorless gas, exhibiting a blue glow when placed in an electric field