MEDIUMMCQ SINGLENEET ChemistryInorganic Chemistryp-Block (group 13 and 14)Introduction to p-block Elements
The reason behind the lower atomic radius of Ga as compared to Al is
A.poor screening effect of d-electrons for the outer✓ Correct
B.increased force of attraction of increased nuclear
C.increased ionisation enthalpy of Ga as compared to
D.anomalous behaviour of Ga.
Explanation
Poor screening effect of d-electrons for outer electrons from increased nuclear charge, Ga have smaller size than Al.
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