What are the difference between metal and nonmetals?

Answer 1

In general: First, the metal has a special metallic luster, most of the gray, but not all kinds of metal, color complex; Second, in addition to Mercury at room temperature is the liquid, the other metals are generally solid, and are relatively heavy, refractory, rather than a lot of metal at room temperature is a lot of gas or liquid; Third, most of the metal is good at conductive heat transfer, non-metal is often not good at conductive heat transfer, so a lot of electrical appliances and pots, pots and so are used to do with metal; Fourth, most of the metal can be labeled as thin slices or drawn into filaments, such as tin foil, copper wire, etc., while solid nonmetals are usually brittle. Of course, there are many non-metallic metals like metal, and some metals have a non-metallic nature, such as the chemical composition of graphite is carbon, not metal But it is the same as the metal, with a gray metallic luster, good heat conduction and antimony it, although it is metal, but very brittle, and not easy to heat conduction, with some non-metallic properties. But the fundamental difference between metal and nonmetal is that the resistance of the metal increases as the temperature increases, ie, the metal has a positive resistance temperature coefficient, and the metal resistance decreases with increasing temperature, Temperature Coefficient.

Answer 2

Metals are typically shiny, ductile, and good conductors of electricity and heat. Nonmetals are typically dull, brittle, and poor conductors of electricity and heat. Metals tend to form positive ions in chemical reactions, while nonmetals tend to form negative ions or share electrons.