Question

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Answer 1

Explanation:

Formation of calcium oxide :-

• When Calcium reacts with oxygen, the calcium atom transfers its two outermost electrons to an oxygen atom. By losing two electron, the calcium atom forms a calcium ion (Ca²+), and by gaining 2 electrons, the oxygen atom forms an oxide ion (O²-). The oppositely charged calcium ions (Ca²+), and oxide ions (O²-), are held together by a strong force of electrostatic attraction to form Calcium oxide compound Ca²+O²- or CaO.

Formation of sodium oxide :-

• When Sodium reacts with oxygen, the two sodium atom transfers its two outermost electrons to an oxygen atom. By losing two electrons, the two sodium atoms form two sodium ions (2Na+), and by gaining two electrons, the oxygen atom forms an oxide ion (O²-). The oppositely charged sodium ions and oxide ions are held together by strong force of electrostatic attraction to form Sodium oxide compound 2Na+O²- or Na2O.