The element aluminum has an atomic number of 13. how many protons are in the nucleus of an aluminum atom? how many electrons does an aluminum atom have?

13 protons and 14 neutrons.  this also means that the amount of electrons also is 13 because electrons have the same amount as protons..the atomic number means the amount of protons (which effectively tells you the electrons) the atomic mass, tells you the amount of protons and neutrons in the nucleus.hope this . 

13 protons and 13 electrons

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