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The least electronegative element in boron family is 

Option: 1

B


Option: 2

Al


Option: 3

Ga


Option: 4

Tl


Answers (1)

best_answer

As we learnt 

 

Electronegative character of boron family -

 

The electronegativity in boron family 1st decrease from B to Al and then increases down the group . This is due to the disperencies in the atomic size of the element 

Also because of inert pair effect and electronegativity increases down the group after Al , so Al is least negative 

Therefore,option (2) is correct.

 

 

Posted by

Shailly goel

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