Which choice below represents a negative impact that chemistry has on society? development of cancer treatment drugs
development of Teflon, the nonstick material used in cookware
combustion of car engines producing pollutants in the air
the development of nuclear power plants used to produce electricity

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.