Rating | Solver | Clue |
---|---|---|
CHLORINE | Gaseous element | |
FLUORINE | Gaseous element | |
RADON | Gaseous element | |
XENON | Gaseous element | |
KRYPTON | Gaseous element | |
NITROGEN | Gaseous element | |
HELIUM | Gaseous element, symbol He | |
NEON | Gaseous element, symbol Ne | |
OXYGEN | A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight ... | |
HYDROGEN | A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence it... |