main group
set of chemical elements in the s- and p-blocks
alkaline earth metal
group of chemical elements
halogens
group of chemical elements in column 17 of the periodic table
nonmetal
chemical elements which tend to localize their valence electrons rather than forming a metallic material
noble gases
group of chemical elements in column 18 of the periodic table, that tend to be chemically inert and thus form odorless, colorless, monatomic gases with low reactivity; consists of helium, neon, argon, krypton, xenon, radon, and possibly oganesson