The trends for electronegativity is that the value increases across the periods (rows) of the periodic table. Lithium 1.0 and Fluorine 4.0 in period 2 The electronegativity also increases up a group (column) of the periodic table. Lithium 1.0 and Francium 0.7 in Group I. Therefore Francium (Fr) in the lower left Group I Period 7 has the lowest electronegativity value at 0.7 and Fluorine (F) upper right Group 17 Period 2 has the highest electronegativity value at 4.0. I hope this was helpful.
SMARTERTEACHER
BRIAN M. · 1 · Mar 30 2014
The tendency of an atom in a molecule to attract the shared pair of electrons towards itself is called its electronegativity
Electronegativity is a dimensionless property since it is only a tendency. It only indicates the net result of the tendencies of different elements to attract the bond forming electron pair.
Ashmita chakraborty · 2 · Mar 25 2018
