Q. 34 B5.0( 3 Votes )

In terms of elect

Class 10th Lakhmir Singh & Manjit Kaur - Chemistry 5. Periodic Classification of Elements

Answer :

In a Period, the atomic size of elements decreases as we move from left to right because the number of protons and electrons increases which results in the force of attraction leading to the reduction of size of atom.

While in a Group, the number of shells increases as we go down the group resulting in the increase of atomic size.

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