Question

How is an ionic bond formed? How is a covalent bond formed?

Answer 1

Ionic bond is formed by the transfer of electrons from one metal to other element.
While
Covalent bond is formed by the sharing of electrons between the two or more atoms.

Hope it helps you out
^_^

Answer 2

here is the ans of your question.....

ionic bond is formed by the attraction of two opposite ions i.e. one positive and other is negative

eg. Na+ + Cl- ----> nacl

covalent bond is formed by the sharing of electrons

eg c + o2 ----CO2

hope this will help you