An electrical insulator has:
a
electrons tightly bound to its atoms
b
negatively charged ions
c
more protons than electrons
d
electrons that freely move
a) electrons tightly bound to its atoms.
An electrical insulator has:
a) Electrons tightly bound to its atoms.
An electrical insulator is a material that inhibits the flow of electric current. One of the main characteristics of insulating materials is that the electrons within their atomic structure are tightly bound to their respective atoms. This means that these electrons are not free to move within the material and therefore cannot facilitate the flow of electric charge.