When 1 mole of magnesium is oxidized to form magnesium ions, the balanced half-reaction is:Mg Mg + 2eAccording to the balanced half-reaction, 1 mole of magnesium Mg loses 2 moles of electrons 2e when it is oxidized to form 1 mole of magnesium ions Mg . Therefore, the number of electrons transferred when 1 mole of magnesium is oxidized is 2 moles of electrons. Since there are 6.022 x 10 particles atoms, ions, or molecules in 1 mole, the number of electrons transferred is:2 moles of electrons 6.022 x 10 electrons/mole = 1.204 x 10 electrons