Question

properties of elements are periodic functions of their atomic numbers and not atomic weight give reason

Answer 1

mendeleev proposed tat properties of elements are the periodic function of their atomic weights and is called periodic law
in the increasing order of atomic weight but some elements with similar properties were paced on different groups
Eg 59Co27 was placed before 58.7Ni28 so mendeleev'periodic law doesn't satisfy the condition ...
later moseley proposed that the physical and chemical properties of the element are the periodic function of their atomic no. based on increasing order of atomic no.

Answer 2

Answer:

Explanation:

mendeleev proposed tat properties of elements are the periodic function of their atomic weights and is called periodic law

in the increasing order of atomic weight but some elements with similar properties were paced on different groups

Eg 59Co27 was placed before 58.7Ni28 so mendeleev'periodic law doesn't satisfy the condition ...

later moseley proposed that the physical and chemical properties of the element are the periodic function of their atomic no. based on increasing order of atomic no.

Hope it helps you!!!!