Magnesium Oxide

Magnesium oxide has ionic bonding.Magnesium has 12 protons and 12 electrons. The electronic configuration is:1s² 2s² 2p⁶ 3s²Oxygen has 8 protons and 8 electrons. The electronic configuration is:1s² 2s² 2p⁴A magnesium atom transfers its two outer main level electrons to an oxygen atom. The outer electrons move into the outer main level of the oxygen atom. Its outer main level is now full.Magnesium becomes a positive Mg²⁺ +2 ion and oxygen becomes a negative O^2- -2 ion.The two ions form an ionic bond (electrostatic attraction).