Irene_SodiumAtom

Number of electrons = 11 Number of neutrons = 12 Number of protons = 11 Atomic number = 11 Period = 3 Atomic mass = 23



In this model of atom there are 12 neutrons and 11 protons in the .Sodium is in period 3 so the electrons are divided in three levels. In the first level there are 2 electrons,8 in the second and 1 in the third.