Question

The two isotopes of chlorine have atomic mass 35u and 37u should they be placed in separete slots in the periodic table

Answer 1

hay mate here is your answer.

In Mendeleev’s Periodic Table the two isotopes of chlorine, Cl-35 and Cl-37 would be placed in different slots because they have different atomic masses. But because of their similar chemical properties which is a more reliable property as it is based on the number of valence electrons, they would be placed in the same slot.

hope it's help you

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Answer 2

Answer:

No, they should be placed in the separate slot (or position) because the periodic table is based on the atomic numbers of the elements and not the atomic masses..