Question

Question #da2f7

Answer 1

I will use Bohr' picture of atom to answer your question.Aluminum atom has 13 electrons in it . These electrons are distributed around the nucleus in a specific way.

Aluminum has three electrons in its outermost orbit also called valence orbit. These three electrons are also called valence electrons. Aluminum atom can lose these three electrons to form `Al^(3+)` ion.