Question

Why is Aluminium electrically neutral?

Answer 1

Since the atom is neutral, hence it must be in its ground state which means it has neither gained nor lost any electrons. Also, the number of protons and electrons in this atom are numerically equal hence making it electrically neutral.

Answer 2

Answer:

Aluminum has 13 electrons in a neutral atom. The 1S2, 2S2 and 2P6 shells are full, and so is the 3S2. The 3P1 shell has one electron in it (in Al's neutral atom) and that gives aluminum one lone valence electron and two "semi-valence" electrons which can be loaned out.