40.What are ionic bond.Explain any two properties of ionic bondExplain the formation of CaO using electron dot structure.
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the transfer of electrons is called ionic bond.
two properties are:
1. they make positive and negative ions.
2. they are good conductors of electricity.
CaO
calcium needs to give 2 electrons to attain stable configuration while oxygen needs two. so calcium gives 2 and oxygen takes 2. so it forms an ionic bond with Ca 2+ ions and O2- ions.
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