How modern periodic table overcome the mendeleev periodic table

Limitations of Mendeleev's Periodic Table: This law states that the physical and chemical properties of the elements are the periodic function of their atomic masses. Modern Periodic Law of element may be defined as the Physical and chemical properties of the elements are periodic functions of their atomic numbers. It means, when the elements are arranged in the order of their increasing atomic numbers.

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sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'