Question

What are the most and least electronegative groups of elements in the periodic table?

Answer 1

ANSWER
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THAT THE ELECTRONEGATIVITY increases from bottom to top in groups, and increases from left to right across periods


. That is why , fluorine is the most electronegative element, while francium is one of the least electronegative.

Answer 2

Electronegativity varies in a predictable way across the periodic table Electronegativity increases from bottom to top in groups and increases from left to right across periods
Thus fluorine is themost electronegative element, while francium is one of the least electronegative