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 O2-
- Mg2+ ion and O2‑ ion attract by strong electrostatic force to form ionic bond.
- Ionic compound, MgO is formed.

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