The correct and short answer is " The outermost electron shell "
Hope this helped
^_^
Answer:
The valance electrons are involved in chemical bonding.
Explanation:
An atom is made up of a nucleus that contains positively charged protons and neutral neutrons. The nucleus is surrounded by the electrons that sphere the nucleus in different orbits. The outermost orbit is always interacts with other atoms and involved in chemical bonding, known as Valance electrons.
The Valance electrons are least attracted by the nuclear positive charge hence easily be donated or shared with other atoms.
For more details, you can refer to the link:
https://brainly.com/question/23882847?referrer=searchResults
