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Class 11
Chemistry :-NCERT Solution - Classification of elements and periodicity in properties.

Question 8
Why do elements in the same group have similar physical and chemical properties?


Answer:

Answer

There are 18 groups in periodic table & each group is a  independent group. All the elements present in a group have same  electronic configuration of the atomsThe physical and chemical properties of elements depend on the number of valence electrons. Elements present in the same group have the same number of valence electrons. Therefore, elements present in the same group have similar physical and chemical properties


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NCERT Chemistry Class 11

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