Ionic Bond (metal + non metal) Transfer of electron

[number of proton: Mg: 12, O: 8]

- Electron arrangement of magnesium atom is 2.8.2

- Magnesium atom donates 2 electron to achieve stable octet electron arrangement.

  Mg → Mg²⁺ + 2e

- Electron arrangement of oxygen atom is 2.6

- Oxygen atom receives 2 electron to achieve stable octet electron arrangement.

   O + 2e → O^2-

- Mg²⁺ ion and O^2‑ ion attract by strong electrostatic force to form ionic bond.

- Ionic compound, MgO is formed.