Question

short note on:structure of the modern periodic table​

Answer 1

Structure of the Modern Periodic Table. The Modern Periodic Table is arranged in order of increasing atomic number, which is the number of protons in the nucleus of an atom. The lightest atom is Hydrogen, in the upper left-hand corner, with an atomic number of 1. ... The Periodic Table consists of rows and columns.

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Answer 2

Explanation:

Modern periodic table is based on the modern periodic law. Main features: Groups - There are 18 vertical columns in the periodic table. ... All elements in a group have similar chemical and physical properties because they have the same number of valence electrons.

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