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Atomic radius of Ga (135 pm) is less than that of Al (143 pm) because
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Correct option is B
The atomic radius of Ga is less than that of Al because of the variation in the inner core of electronic configuration. The presence of additional I0 d-electrons offer only poor screening effect for the outer electrons from the increased nuclear charge in gallium.Similar Questions
The bond dissociation energy of BF bond in BF3 is 646 kJ mol–1 whereas that of CF in CF4 is 315 kJ mol–1. The correct reason for higher BF bond dissociation energy as compared to that of CF bond is :
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