Question

Draw the Lewis Dot structure of the following.
 $ \text{C}{{\text{O}}_{\text{3}}}^{\text{2-}} $ , $ \text{HCl}{{\text{O}}_{\text{4}}} $ , and $ \text{HN}{{\text{O}}_{3}} $ .

Answer 1

Hint: The electron dot structure by Lewis is a structural representation of the bonds and the valence shell electrons that are present in an ionic or a covalent compound. The electrons in the compounds are represented by dots and the bonds are represented as shared electron pairs.

Complete Step by Step Answer
The Lewis electron dot structure of carbonate anion is:

In this structure, the carbon atom is surrounded by two oxygen atoms in a linear arrangement of atoms such that each atom has fulfilled its octet configuration. There are four electrons in the valence shell of the carbon atom and they need four more electrons to attain the stable octet configuration. On the other hand, oxygen needs two more electrons to attain the octet configuration. So the oxygen atoms share two electrons with the carbon atom.

In this structure, the chlorine atom is surrounded by four oxygen atoms in a square arrangement of atoms such that each atom has fulfilled its octet configuration. There are seven electrons in the valence shell of the carbon atom and it needs one more electron to attain the stable octet configuration. On the other hand, oxygen needs two more electrons to attain the octet configuration.

In the structure of nitric acid, the central atom is the nitrogen atom and the oxygen atoms are arranged in a trigonal way around the nitrogen atom with the hydrogen atoms being attached to any one of the oxygen atoms.

Note
The Lewis electronic configuration is a two-dimensional representation of the molecules and hence it does not show the stereochemistry of the atoms that is the arrangement of atoms in space.