My teacher taught me to use the word "iso" and "neo" as perfix. Is it okay if I use the word "neo" for the all isomers of all the alkanes and alkenes like hexane,heptene etc.? Like for pentane we have iso pentane and neo pentane But for hexane we have names like 2,3 dimethylbutane. Is that really necessary? Can't I just use the word neo and say it is neo hexane?