Would you place the two isotopes of chlorine, Cl-35 and Cl-37 in different slots because of their different atomic masses or in the same slot because their chemical properties are the same ? Justify your answer.

Explanation

The arrangement of elements in the Mendeleev's periodic table is done on the basis of atomic mass so that the elements having similar chemical properties are placed in the same group . Since the atomic masses of the isotopes of chorine are different but they have similar chemical properties, it would be difficult to assign them a proper position in Mendeleev's periodic table.