What is the atomic mass of aluminum?

The atomic number (Z) of aluminum is 13. Its nucleus thus contains 13 protons. Given this, can you quote the number of electrons in the aluminum atom, and the number of neutrons that are contained within the nucleus. read more

›› More information on molar mass and molecular weight In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. read more