Fluorine
Chlorine and fluorine, with fluorine more reactive. Some would also include oxygen. (The two remaining halogens are not gaseous at room temperature.)
Fluorine is classified as a nonmetal. It is a highly reactive, gaseous element that belongs to the halogen group in the periodic table.
Yes, oxygen is an active nonmetal. It is highly reactive and forms compounds with many elements.
Yes, chlorine is chemically reactive. It is a highly reactive nonmetal and readily forms compounds with other elements.
Chlorine is more reactive than phosphorus. Chlorine is a highly reactive nonmetal that readily forms compounds with other elements, while phosphorus is less reactive and forms compounds mostly with metals.
phosphorous is a highly reactive nonmetal but fluorine is more reactive
Chlorine is a nonmetal that is highly reactive with metals. It can form salts with metals through a chemical reaction known as metal chlorides.
Fluorine is a highly corrosive gaseous halogen that is capable of reacting with virtually all elements. It is extremely reactive and is usually found in compounds rather than in its pure form.
Fluorine is the most chemically active nonmetal on the planet. It is highly reactive and can form compounds with almost all elements due to its strong electronegativity.
Chlorine is more reactive than aluminum. Chlorine is a highly reactive nonmetal that readily forms compounds, while aluminum is a reactive metal that forms a protective oxide layer, reducing its reactivity compared to chlorine.
The other highly reactive element in period 2 is fluorine, a non-metal. Both lithium and fluorine readily form compounds due to their high reactivity.
Sodium and chlorine have different reactivities. Sodium is a highly reactive metal that readily forms compounds with other elements, while chlorine is a highly reactive nonmetal that easily reacts with other elements to form compounds like sodium chloride (table salt).