Helium as a gas is an electrical insulator.
No it is an excellent conductor of heat and electricity
No, helium is a really poor heat conductor.
since iron is a metal and most metals are good conductors of electricity one can assume that iron is a fair conductor of electricity. The electrical conductivity of iron is approx. 1/6 from the electrical conductivity of silver (the best known conductor).
For a metal, it's not bad.
A, sodium chloride, because it is a crystalline solid. It has an ionic bond when in it's solid form and is a poor conductor. It is a good conductor of electricity in an aqueous state or when fused.
helium is an insulator (poor conductor) of heat
helium is an insulator (poor conductor) of heat
No
Helium is not a good conductor of electricity since its valence band is full and there is a large gap between this and its conduction band which means that electrons cannot be readily promoted from the fermi level to the conduction band...hence electrons are not free to move and there is no conduction.
Krypton is a poor conductor of either heat or electricity.
No. It is a poor conductor of electricity. It is similar to the conducting properties of plastic.
Water is a poor conductor of electricity. However, the presence of ions in water make the solution a good conductor of electricity.
No. Copper is a good conductor of both electricity and heat.
No, iron is a very poor conductor compared to other metals such as aluminum and copper
All metals conduct electricity to some extent. Chromium isn't an especially good conductor, but it does conduct.. so we can say that it is a poor conductor.
Yes. Diamond is a poor conductor of electricity.
Carbon is a poor conductor of heat and electricity.