1.

How did the position of _17^35Cland _17^37Cl get fixed in the Modern Periodic table?

Answer»

Solution :(i) Modem PERIODIC table is based on ATOMIC numbers, So, the position of ISOTOPES of elements was decided by arranging the elements in the ascending order of their atomic numbers.
(ii) As isotopes have the same atomic number they do not need to be given DIFFERENT POSITIONS (slots).


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