* Covalent bonds form when atoms share electrons to achieve a stable electron configuration.

* Ionic bonds form when one atom completely transfers an electron to another atom, resulting in oppositely charged ions that attract each other.

In ozone (O3), the three oxygen atoms share electrons to achieve stability. This sharing creates double bonds between the oxygen atoms, resulting in a covalent bond.

Here's a simplified representation of the ozone molecule's structure:

O = O - O

The double lines indicate the sharing of electrons between the oxygen atoms, which is characteristic of covalent bonding.