Answer:Atom/Ion Symbol Protons Neutrons Electrons Hydrogen H 1 0 1 Hydrogen Ion H⁺ 1 0 0 Sodium Na 11 12 11 Sodium Ion Na⁺ 11 12 10 Magnesium Mg 12 12 12 Magnesium Ion Mg²⁺ 12 12 10 Aluminum Al 13 14 13 Aluminum Ion Al³⁺ 13 14 10 Nitrogen N 7 7 7 Nitride Ion N³⁻ 7 7 10 Oxygen O 8 8 8 Oxide Ion O²⁻ 8 8 10 Fluorine F 9 10 9 Fluoride Ion F⁻ 9 10 10