Question

Write note on structure of the Modern periodic table .​

Answer 1

There are 18 vertical columns in the periodic table. Each column is called a group. All elements in a group have similar chemical and physical properties because they have the same number of valence electrons. Periods - In periodic table elements are arranged in a series of rows

Answer 2

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1. The Modern periodic law states that The chemical and physical properties of elements are a periodic function of their atomic numbers.
2. The modern periodic table is based on the modern periodic law. Main features: Groups - There are 18 vertical columns in the periodic table.

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