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Q.
$Mg$ and $Li$ are similar in their properties due to:
AFMCAFMC 2004
Solution:
The elements of second period resemble in many respect to those elements of third period which are diagonally opposite to them (diagonal relation)
Diagonally related elements have nearly the same value of
(a) electronegativity
(b) polarising power
(c) Ionic potential $\left[\frac{\text { ionic charge }}{\text { (atomic radius) }^{2}}\right]$
