Copper conducts heat well because its atoms contain only one free valence electrons in the outer shell. Elements with a low number of valence electrons transfer heat the best, and copper has only one.Know More
Valence electrons move about freely. Just as the impact of a billiard ball striking another billiard ball is greater than when it collides with multiple balls, a single electron imparts significant energy to other electrons. Since copper has only one electron in its outer shell, it transfers a strong repelling energy to electrons with which it collides.
It is the degree of energy within the metal that imparts heat. Since heat increases when the subatomic particles are able to move without resistance throughout the metal, copper is a good conductor of heat. If heat is applied to one end of a cooper wire, it travels quickly to the other end, as the electrons move unimpeded by resistance.
Electrical conductivity is indirectly proportional to resistance a metal has when an electrical field is applied. Conduction is proportional to the current. Copper has a low resistivity measured in ohms. Its conductivity, measured by siemens per meter, is high. Copper is second only to silver in its conductive properties.Learn More
Thermal energy is used to describe energy in a heated form. Thermal energy is transferred in three different ways: radiation, conduction and convection.Full Answer >
Gases are compressible because they are less dense than other states of matter and have fewer atoms or molecules per unit of volume. Because there is more space between the molecules, it is easy to compress the gas into a smaller space.Full Answer >
A poor conductor of heat is any material that can not transfer heat. Poor conductors have a low density thus the particles in a given volume of the material are not enough to collide and transfer heat. Examples of poor heat conductors include air, wood, paper, cloth and water.Full Answer >
Lithium has a boiling point of 1,342 degrees Celsius and a freezing point of 180.5 degrees Celsius. Due to lithium's high freezing point, it exists as a solid at room temperature.Full Answer >