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What is the periodic trend observed in the variation of atomic radii down a group?

Answer»

Solution :While going down the group the atomic radii goes on increasing, this is because new SHELLS are added to the atoms of the elements as we go down from top to bottom in a group. The outermost electron go further and further away from the nucleus, extending the radius and ULTIMATELY ultimately increasing the SIZE of the atom INSPITE of the INCREASED nucler charge.


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