Why is glass a good insulator?

The atoms in glass hold on tightly to their negatively charged particles.
The atoms in glass do not hold on tightly to their positively charged particles.
The atoms in glass hold on tightly to their positively charged particles.

Glass is a good insulator because it does not allow the flow of heat or electricity easily. This is due to its high electrical resistance and low thermal conductivity. The tightly held atoms in glass also prevent the movement of electrons, which makes it a good electrical insulator. Additionally, the absence of free electrons in glass restricts the transfer of heat, making it a good thermal insulator. Thus, glass is often used as a material for insulators in electrical and construction applications.