Answer:
-a nonmetal is a substance that lacks the characteristics of a metal.
-Seventeen elements are generally classified as nonmetals: most are gases (hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon); one is a liquid (bromine); and a few are solids (carbon, phosphorus, sulfur, selenium, and iodine).
Answer:
Radioactive and are often called radioisotopes
Answer:
halogen
Explanation:
It belongs to Group 17 on the periodic table, which is a halogen
E is Bohrs model the dots on the rings represent the valence electrons
