Question

periodion of element in modern periodic table :-
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Answer 1

Answer:

Explanation:

The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number. ... Atomic numbers increase from left to right and from top to bottom in the table. Rows of the periodic table are called periods.

Answer 2

Modern periodic law states that the physical and chemical properties of elements are the periodic functions of their atomic number.

There are 18 groups and 7 periods present in the modern periodic table.