Question

define modern periodic table​

Answer 1

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Modern Periodic Table, also known as the Periodic Table, is a tabular arrangement in which chemical elements are arranged according to their atomic numbers, configuration of electrons and chemical properties.

Answer 2

Modern periodic table is defined as the tabular arrangements of elements in group and periods .in which elements are arranged according to atomic number , valencies or different periodic properties .

Periodic table are made to learn different properties of elements easily .

Modern periodic table contain 18 group and 7 periods .

In periods the elements are arranged according to number of cell containing electron and group according to valence electrons .