Question

Which element in the list is the most reactive?
(1 point)
S
Ba
Cs
C

Answer 1

The most reactive element in the list is **Cs** (cesium). Cesium is an alkali metal, and alkali metals are known for their high reactivity, particularly with water and halogens. Among the elements listed (sulfur, barium, cesium, and carbon), cesium is the most reactive.