Magasi Nharangani anoonekera pakuti haana munhuwi, haana ruvara uye ane hatomu nyaumwe - monoatomic. Magasi nharangani anosanganisira: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). Shoko rokuti nharangani rinodudzira chinhu chisingawanikwi nhando - rare, scarce.