Input interpretation
gaseous elements (at STP) | group
Summary
1 | 15 | 16 | 17 | 18
Group rankings
1 | hydrogen | 1 2 | nitrogen | 15 3 | oxygen | 16 4 | chlorine | 17 5 | fluorine | 17 6 | radon | 18 7 | xenon | 18 8 | krypton | 18 9 | argon | 18 10 | neon | 18 11 | helium | 18