chemical group
group
radical
ethyl
ethyl group
ethyl radical
methyl
methyl group
methyl radical
alkane
alkenyl
alkynyl
acyl
alkoxy
ammonium
anhydrous
aryl
cesium
cyclopropyl
dimethyl
ferric
hydroxyl
lauryl
mercuric
n-alkylammonium
nitrous
t-butyl
tertiary