Question

state the reason for the following the element of same group have similar chemical properties and second 13 elements of the same period have different properties​

Answer 1

THE ELEMENTS OF THE SAME GROUP HAVE SAME CHEMICAL PROPERTIES DUE TO SAME OUTER ELECTRONIC CONFIGURATION

THE DIFFERENCE IN THE CHEMICAL PROPERTIES OF THE ELEMENT S IN THE SAME PERIOD IS DUE TO THE DIFFERENCE IN THE ELECTRONS IN THE OUTER ORBITS

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