Nemfémekhez
Nemfémekhez is a term that refers to nonmetals. Nonmetals are a class of chemical elements that lack the physical and chemical properties of metals. They are typically poor conductors of heat and electricity, and they do not have the luster, malleability, or ductility associated with metals. Nonmetals are generally found on the right side of the periodic table, in groups 14 to 17, with the exception of hydrogen, which is in group 1.
Common examples of nonmetals include oxygen, nitrogen, carbon, sulfur, phosphorus, and the halogens (fluorine, chlorine, bromine,
The properties of nonmetals are diverse. For example, while most are insulators, carbon in its allotrope graphite