* Electronegativity Values:
* Fluorine (F): 3.98 (the highest electronegativity)
* Francium (Fr): 0.7 (the lowest electronegativity)
* Calculate the Difference:
3.98 (Fluorine) - 0.7 (Francium) = 3.28
Therefore, the electronegativity difference between fluorine and francium is 3.28.
What does this difference mean?
A large electronegativity difference (like this one) indicates a very polar bond. Fluorine is extremely electronegative, meaning it strongly attracts electrons. Francium is extremely electropositive, meaning it readily loses electrons. This results in a highly ionic bond where fluorine will have a strong negative charge and francium a strong positive charge.