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give reason:

lithium atom is smaller than sodium atom

cl (atomic no 17)is more electronegative than sulphur (at no 16)

Asked by Puju S(student) , on 10/3/12

as we go down the group one shell is added regularly.thus lithium is smaller.

the non mettalic character increases acroos the period.thus cl is more electro negative

Posted by Remitha(student)on 10/3/12

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