Question

Discuss the classification of elements on the basis of modern periodic table​

Answer 1

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• The classification of elements in the periodic table was done on the basis of their atomic number.

• The elements were arranged in the order of increasing atomic number.

• The chemical and physical properties of the elements were also taken in care for the classification.

• The prediction of properties of elements could be made with more precision when elements were arranged on the basis of increasing atomic number.

• The anomalous position of hydrogen what's the decided perfectly in Modern Periodic Table.

• There 18 vertical columns known as groups and 7 horizontal rows known as periods.

• All the elements in a period have same number of shells.

• The elements in a group have same number of valence electrons.

• We have all the metals in the left hand side of the periodic table, non metals on the right-hand side and a zigzag strip in between of metals and nonmetals of metalloids.

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