Question

"The properties of the elements are a periodic function of their atomic weights'
A. Law of octaves
B.Mendleev's periodic law
C. Modern periodic law
D. Newland's law​

Answer 1

Answer:

mendleevs preiodic law

Answer 2

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Mendeleev's Periodic Law is about atomic weight.

Modern Periodic Law is about atomic number.

Hence answer is B) Mendeleev's Periodic Law