In the formation of compound between two atoms A and B, A loses two electrons and B gains one electron.

a. What is the nature of the bond between A and B.

b. What type of compound is formed?

c. Why does it conduct electricity in molten state or aqueous solutions.

A loses 2 electrons and becomes A⁺⁺

B gains one electron and becomes B^-

In the formation of the compound between two atoms A⁺⁺ and B^-,

• The nature of the bond is ionic bond.

• The type of compound formed by positive and negatively charged ions is ionic compound.

• The ionic compound in molten state of aqueous solutions dissociates and produce positively charged cation and negatively charged anion. These charged particles or ions can conduct electricity in molten state or aqueous solution.

Explanation: -

(a) & (b)Since the compound between A and B is formed by transfer of electrons therefore, the nature of the bond is ionic.

Formation can be shown as:

A → A²⁺ + e-

2B + 2e- → 2B^-

The compound can be formulated as: AB₂

(c) This compound in molten state or in aqueous solutions dissociates into ions A²⁺ and B⁻. These ions travel from anode to cathode or vice versa. So the liquid conducts electricity as ions can travel in a liquid.