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What is diogonal relationship

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What is diogonal relationship

Posted by Masha Alla 5 years, 11 months ago

CBSE > Class 11 > Chemistry

2 answers

Vivek Kumar 5 years, 11 months ago

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Yogita Ingle 5 years, 11 months ago

The similarity in the properties of definite pairs of diagonally adjacent elements in the second and third periods of the periodic table is called diagonal relationship.
In s-block elements Lithium is the first element of group 1 whereas Beryllium is the first elementsof Group 2.
Some of their properties do not match with the properties exhibited by other elements of their group.
Instead their properties resemble the properties of the second element of the following group due to the similarity in ionic sizes and /orcharge/radius ratio of the elements.
Consequently lithium and magnesium have similar properties whereas Beryllium and Aluminium exhibit similar properties.

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