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Why is Ga smaller in size …

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Why is Ga smaller in size than Al?

Posted by Hitesh Saini 8 years, 11 months ago

CBSE > Class 11 > Chemistry

1 answers

Shruti Dadhwal 8 years, 11 months ago

The size of Ga is sampler than Al due to poor screening effect .The electrons in 3d of Ga are occupied ,they have poor screening effect and hence less influence to decrease effective nuclear charge .Therefore electrons in Ga experience more force of attraction than Al resulting in decrease in size.

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