In the formation of compound between two atoms A and B , A loses two electron and B gains one electron .
1) What is the nature of bond between A and B?
2) Suggest the formula of the compound formed between A and 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