Which of the following is least electronegative element?
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
B
b
Al
c
In
d
Tl
answer is B.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
In boron family, electronegativity first decreases from B to Al and then it starts to increase on account of fully filled penultimate d and antepenultimate f subshell.