Why does chlorine have fractional atomic mass ?

Most elements have fractional atomic masses. ' Explain.

Explain why chlorine has relative atomic mass of about 35.5 u?

The two isotopes of chlorine have atomic mass 35 u and 37 u. Should they be placed in separate slots in the periodic table ?

Two types of atoms of chlorine have atomic masses 35 and 37, then why is the atomic mass of chlorine taken as 35.5?

An element has fractional atomic mass. What does it indicate ?

The elements which exitst as isotopes have generally fractional atomic masses.Justify.

The binding energy of an isotope of chlorine is 298 MeV. What is the mass defect of this chlorine nucleus in atomic mass units?

Why does chlorine act as a bleaching agnet ?