CBSE Class 11-science Answered
Generally atomic radii increases down the group, but atomic radius of Ga is less than that of Al. Why?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
The presence of additional 10 d-electrons offer only poor screening effect for the outer electrons from the increased nuclear charge in gallium hence the atomic radius of Ga is less than Al.
Answered by | 04 Jun, 2014, 03:23: PM
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