How many protons neutrons and electrons does aluminum have?

The element aluminum has 13 protons. It will have 13 electrons in its neutral state, though aluminum loans out electrons to form bonds. Under these circumstances, it will have 10, 11 or 12 electrons.

The only stable isotope of aluminum (aluminum-27), and basically the only one found in nature, has 14 neutrons in it. (There have been, however, investigators who report a trace of Al-26, which has 13 neutrons in it.) We should note that we have synthesized a number of isotopes of aluminum in the lab. Links can be found below for more information.
The number of protons in an atom is called the atomic number. Therefor, aluminium has 13 protons. The mass number is the number of protons and neutrons. Therefor, (27-13=14) aluminium has 14 neutrons. The number of protons is equal to the number of electrons, Therefor, aluminium has 13 electrons.