Silicon (Si-14) has 14 protons and has an atomic radius of 111 pm. Germanium (Ge-32) has 32 protons and an atomic radius of 125 pm. Use the models of these two atoms and the periodic table to explain the difference in atomic radius between the two atoms. Include in your explanation Coulomb's Law, the calculated attractive forces for the outermost electron, and any atomic radius trend needed to fully explain your answer.​