Question

which group of elements has the most similar chemical properties? (1 point)
fluorine, chlorine, and iodine
aluminum, silicon, and phosphorus
carbon, nitrogen, and oxygen
uranium, plutonium, and lead

Explanation:

Elements in the same group of the periodic - table have similar chemical properties. Fluorine, chlorine, and iodine are all halogens (Group 17), sharing similar outer - shell electron configurations and thus similar chemical properties. The other groups of elements are from different groups or periods and have diverse chemical behaviors.

Answer:

Fluorine, chlorine, and iodine