Question

justify the statement is calcium oxide an ionic compound?​

Answer 1

To explain:

Calcium oxide is an ionic compound.

Explaination:

An ionic compound is formed between elements connected by electrostatic bond which is facilitated by donation and acceptance of electrons.

So, Calcium being a metal donates 2 electrons and form a divalent cation.

$\rm{Ca \longrightarrow {Ca}^{ + 2} + 2 {e}^{ - 1} }$

These two electrons are accepted by oxygen atom which forms a divalent anion;

$\rm{O + 2 {e}^{ - 1} \longrightarrow {O}^{2 - } }$

Thus , ${Ca}^{+2} \: and\: {O}^{-2}$ ions combine together by electrostatic forces to form the electrostatic bond.

$\boxed{\bf{{Ca}^{+2} +{O}^{-2}\longrightarrow CaO}}$

Hence , CaO is an ionic compound.

Answer 2

Yes, calcium oxide is an ionic compound.

Explanation:

• An ionic bond is formed between a metal and a non-metal.
• The electrostatic force of attraction is present between ionic compounds.
• Calcium oxide is an ionic compound because calcium forms a divalent positive ion by losing 2 electrons.
• Ca ---> Ca2+   + 2e-
• These two electrons are accepted by oxygen. Such as
• O + 2e-   ----> O2-
• The overall equation of reaction is:
• Ca2+   + O2-  ----> CaO
• Hence proved calcium ion is an ionic compound.