Why are metals good conductors of electricity and heat? What feature of the structure of metals determines
Why are metals good conductors of electricity and heat? What feature of the structure of metals determines the presence of these properties? What are the most conductive metals?
High electrical conductivity is due to the nature of mobile electrons, which, under the action of an electric field, acquire directional motion. Thermal conductivity is also explained by the high mobility of electrons, which collide with atoms and metal ions vibrating at the lattice sites, exchange energy with them. As the temperature rises, these vibrations are transferred to other ions with the help of electrons, and the temperature of the metal quickly levels out.
Electrical conductivity and thermal conductivity of metals increases from mercury to silver:
Hg, Pb, Fe, Zn, Mg, Al, Au, Cu, Ag
Those. copper and silver are the most conductive metals.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.