1. The problem statement, all variables and given/known data For chemistry I have to name alkanes, however there is this one that I am unsure of. This one consists of both alkyl groups and halogens. Would I make my alkyl group the lowest possible number or my halogen group, or does it not matter as long as I use the lowest possible number? And does the alphabetical rule apply if I have a halogen and an alkyl group or would I put my alkyl group first because of the 'priority order'? 2. Relevant equations 3. The attempt at a solution I do think I have to use the lowest possible number no matter if it's an alkyl group or a halogen, can someone tell me if I'm correct. And the alphabetical order I am unsure of the reason why is because I am seeing an alkane named "2-methyl-4-chloro-5-bromononane" and this is not alphabetical.