In the periodic table electronegativity increases from left to right in a period and decreases f...

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In the periodic table electronegativity increases from left to right in a period and decreases from top to bottom in a group. The non-metallic character of an element is directly related to the electronegativity while the metallic character is inversely related to it.
Answer the following:
The least metallic element of group-13 is
(A) Aluminium
(B) Boron
(C) Gallium
(D) Indium.
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