Using what you know about the trend of electronegativity on the periodic table, which of the following elements would be the most electronegative?

a
Calcium
b
Neon
c
Iron
d
Fluorine

d

Fluorine

The most electronegative element among the options provided is "Fluorine." Fluorine is known to have the highest electronegativity value on the periodic table, meaning it has the strongest tendency to attract electrons towards itself when it forms chemical bonds.