Question

characteristics of insulator​

Answer 1

Property 1: In an insulator, the valence electrons are tightly held together.  

Answer 2

An insulator is a material which is a poor conductor of electricity or heat. Some common insulators include wood, plastic, glass, porcelain and Styrofoam; Styrofoam and plastic see wide use in household applications. Floors, roofs and basements often get urethane foam insulation, as it reduces heating costs by retaining heat in homes. A number of properties limit an insulator's ability to conduct heat and electricity.

Insulators are poor conductors of heat and electricity, due to tight binding of electrons in their atoms and molecules. Examples include air, rubber, Teflon, Styrofoam, cloth and fiberglass

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