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Question
Describe the general trends in the following properties of the elements in Groups 13 and 14.
Metallic character
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Solution
The metallic character in group 13 follows an unusual trend. Metallic character First increases from Boron to aluminium and then decreases from aluminium to thallium. This decrease is majorly due to the poor shielding effect of d and f electrons present in the heavier metals.
In group-14, as we move down the group, the metallic character increases.
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