There are 3 groups of non-metals in which they are : Halogens, Noble Gases and Other nonmetals
Nobel gasses.
Oxygen is a nonmetal.
All materials are either metal, metalloid, or nonmetal.
nonmetal with nonmetal pair of electrons is shared between 2 atoms
Ionic bond is specific for metal-nonmetal combinations.
The metal to nonmetal bonds. Especially between Groups 1A, 2A and the halogens.
Salt is a compound of Sodium (Na) and of Chlorine (Cl), thus, it is a nonmetal because it is a compound of 2 nonmetals. Na is not a nonmetal it is a highly active metal. This can be easily googled.
The groups of the periodic table are:Group 1: Alkali MetalsGroup 2: Alkali Earth MetalsGroup 3: BoronGroup 4: CarbonGroup 5: NitrogenGroup 6: OxygenGroup 7: HalogensGroup 8: Noble or Inert Gases
nonmetal
It does not belong to any; it is simply a nonmetal.
Nails are metal.
representative elements