Explain the nomenclature of haloalkanes containing two identical halogen atoms with examples,or state their differences.

(N/A) Haloalkanes containing two identical halogen atoms are classified into two types based on the position of the halogen atoms:
$1$. Geminal Dihalides (Alkylidene dihalides):
- In these compounds,two halogen atoms are attached to the same carbon atom.
- Example: $CH_3-CHCl_2$ is named as Ethylidene chloride (common name) and $1,1-dichloroethane$ ($IUPAC$ name).
$2$. Vicinal Dihalides (Alkylene dihalides):
- In these compounds,two halogen atoms are attached to adjacent carbon atoms.
- Example: $Cl-CH_2-CH_2-Cl$ is named as Ethylene dichloride (common name) and $1,2-dichloroethane$ ($IUPAC$ name).