There is a diagonal connection between adjacent elements in the second and third periods of the periodic table in S block elements.
The attributes of s block elements are very different from the other components in the sub-group to which they belong.
The diagonal neighbours share many characteristics.
There will be a discernible shift in the group’s relationship as you move from left to right.
Diagonal correlations are the result of many atomic properties changing in distinctive ways down groups and across periods of the Periodic Table.
In addition to group and period relationships, the s and p-block elements also have diagonal relationships.
Explanation of diagonal relationship :
The elements show some similarities when going diagonally across the periodic table, but they are far less evident than the similarities within a group.
In the second and third periods of the periodic table, the diagonal relationship is most visible.
The diagonal relationship is owing to the diagonally positioned components having identical polarising power.