Concept:Fluorine reacts strongly because it attracts electrons more powerfully than any other element.
Explanation:Fluorine has the highest electronegativity, about
≈3.98.
This strong attraction pulls electrons from other atoms, causing fluorine to react vigorously with most elements.
The F–F bond is actually weak, not strong, and fluorine has no available d-orbitals.
Although the small size of fluorine contributes to its high electronegativity, the direct reason for its high reactivity is its high electronegativity.
Answer:A. its high electronegativity