The number of electrons in the outermost shell of an atom will determine the chemical activity of the atom.

Question

Quizplus · Accepted Answer

The number of electrons in the outermost shell or valence shell of an atom are involved in chemical reactions, as they determine the atom's reactivity and the types of chemical bonds it can form with other atoms. This is because the valence electrons are the ones involved in the exchange, sharing or transfer of electrons with other atoms. Therefore, the number of valence electrons determines the chemical activity of the atom.

The Number of Electrons in the Outermost Shell of an Atom