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.
The atomic number of aluminum is 13, therefore there will be 13 protons. The number of neutrons equals the mass number minus the atomic number. For aluminum-25, that will be 25 - 13 = 12 neutrons. There will be 13 electrons in the neutral atom of aluminum, regardless of which isotope we are considering.
The number of protons is the atomic number listed on the periodic table. Therefore, the number of protons in aluminum is 13. When no charge is given, the number of protons = the number of electrons, so aluminum-27 also has 13 electrons. The number of neutrons is found using mass number-atomic number. In the name aluminum-27, the 27 indicates the mass number. So the number of neutrons in aluminum-27 is 27-13 = 14.