Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Explain the formation of carbon dioxide molecule with help of electron dot diagram. [3 Marks]

Answer 1

Carbon dioxide molecule has a carbon atom and two oxygen atoms.

The electronic configuration of carbon is 2, 4.
The electronic configuration of oxygen is 2, 6.

The valency or combining power of respective elements are:

Carbon = 4
Oxygen = 2
[1 Mark]
The lewis dot structure for carbon dioxide is :


[1 Mark]

As carbon forms four electron pairs to complete its octet, it forms four covalent bonds with oxygen.

[1 Mark]