Chemistry · S and p Block Elements

Fluorine (F) is the most active nonmetallic element due to its high reactivity and the highest electronegativity of all elements. It readily gains electrons to form compounds. Chlorine, while reactive, is less so than fluorine because it has a lower electronegativity. Oxygen is also reactive but not to the extent of fluorine. Sulfur is the least reactive among the options, as it has a significantly lower tendency to gain electrons compared to fluorine.

Chlorine is a highly reactive nonmetal, especially within its group, but it is less reactive than fluorine due to having lower electronegativity.

Fluorine (F) is the most active nonmetallic element. It has the highest electronegativity and reactivity among all elements, making it exceptionally efficient at gaining electrons and forming compounds.

Oxygen is a reactive nonmetal but is less reactive than fluorine. Its reactivity is significant for forming compounds, yet it is surpassed by fluorine's reactivity due to lower electronegativity.

Sulfur is a nonmetal that can form compounds, but it is much less reactive than fluorine, chlorine, and oxygen, primarily due to its lower electronegativity.