Step-by-step explanation:
Terminal atoms -
The atoms that are always present at the terminal position , because they have the capability of bonding via one single bond .
hence ,
- Hydrogen atom is a terminal atom , because it can only form one single bond , since , hydrogen has only one electron in its shell , so the octet is completed by sharing that electron with another one electron , and forming a bond .
Therefore , hydrogen atom is considered to be a terminal atom .
- Similarly , Halogens have 7 electrons , hence , to attain noble gas configuration , it require only one electron .Hence , it can form only one single bond .
Therefore , halogen atom is considered to be a terminal atom .