Q. Which of the following are the most and the least electronegative elements in the periodic table?
Answer: Fluorine and Caesium
Notes: Caesium is the least electronegative element in the periodic table and Fluorine is the most electronegative. Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 1 in Chemistry-9-Periodic Table in above course in App.