How are the common and $IUPAC$ names of alkyl halides assigned? Give examples.

(N/A) The naming of alkyl halides is done as follows:
$1$. Common Names: These are named by naming the alkyl group followed by the name of the halide (e.g.,$n$-propyl bromide).
$2$. $IUPAC$ Names: These are named as halo-substituted alkanes. The halogen atom is treated as a substituent on the longest carbon chain,and its position is indicated by a number.
| Structural Formula | Common Name | $IUPAC$ Name |
| :--- | :--- | :--- |
| $CH_3CH_2CH_2Br$ | $n$-propyl bromide | $1$-bromopropane |
| $CH_3CH(Cl)CH_3$ | isopropyl chloride | $2$-chloropropane |
| $(CH_3)_2CHCH_2Cl$ | isobutyl chloride | $1$-chloro-$2$-methylpropane |
| $(CH_3)_3CCH_2Cl$ | neopentyl chloride | $1$-chloro-$2,2$-dimethylpropane |
| $CH_3CH(Br)CH_3$ | isopropyl bromide | $2$-bromopropane |