Naming Alkyl Halides Step 2 Number the carbons of the parent chain beginning at the end nearer the first substituent,whether alkyl or halo Assign each substituent a number according to its position on the chain CH3 Br Br CH3 CH3CHCH2CHCHCH2CH3 CH3CHCH2CHCHCH2CH3 1°231456 7 1231 1456 CH3 CH3 5-Bromo-2,4-dimethylheptane 2-Bromo-4,5-dimethylheptane If different halogens are present,number all and list them in alphabetical order when writing the nameStep 2 Number the carbons of the parent chain beginning at the end nearer the first substituent, whether alkyl or halo • Assign each substituent a number according to its position on the chain If different halogens are present, number all and list them in alphabetical order when writing the name Naming Alkyl Halides