Right below neon on the periodic table, for 10 points, name this colorless, tasteless noble gas with atomic number 18 and symbol Ar.
This element forms a cage compound with hydroquinone, as well as a Van der Waals molecule with diatomic hydrogen. Scientists have managed to create an excimer with this element and fluorine, and this element forms ionic compounds with hydrogen, krypton and xenon. It is generally retrieved by fractionating liquid air, and the Earth's atmosphere is composed of .94% of it. Frequently used in fluorescent lighting and lamps, this element has eight isotopes, five of which are radioactive. Right below neon on the periodic table, for 10 points, name this colorless, tasteless noble gas with atomic number 18 and symbol Ar.
This element forms a cage compound with hydroquinone, as well as a Van der Waals molecule with diatomic hydrogen.
argon