New Shower Costs. The actual cost of a new shower depends on your location, the materials used, the complexity of the installation, and other factors. 1  A basic shower enclosure may cost as little as $400 to $600, while a combination bath/shower unit or a top-of-the-line surround could cost $1,500 to $3,000 or more.
A metal with a large number of free flowing electrons most likely has good conductivity
The simple explanation is metals have a small number of valence electrons (electrons in the outer most level) compared to the number of orbitals available on the outermost level (s,p,d,f). This means the electrons are free to roam throughout the metal structure thus producing a flow of electrons throughout the crystal.