Yes, this is mostly true. It starts to become untrue near silicon.
Most (if not all) metals are good conductors of heat and electricity, and most (if not all) metals are shiny. Copper, iron, sodium, calcium and a lot more are possible answers to your question.
A material that is a good thermal conductor would hold in a lot of heat. These thermal conductors would also transfer heat easily.
Carbon and Sulfur are both elements that satisfy your query. There are several others, including many gases.
yes copper is actually a very good insulator to both heat and electric conducting A2: NO. Copper is about the second-best electrical conductor, next to silver. It is also a very Good heat conductor. Try heating an iron poker in a fire. The heat travels slowly to the opposite end. A copper wire, however, if stuck in the fire, will transfer heat Very quickly--you won't be able to hold the other end of it! wikipedia.org/copper
Beryllium metal is an electrical and thermal conductor. Beryllia, the ceramic of beryllium, is a thermal conductor and an electrical insulator. Both have very high thermal conductivity relative to other metals or oxides.
a metal
aluminum, copper,
Tranition metals
a metal
Iodine is an element located in group 17 in the periodic table. It is a non metal and it has neither free electrons nor ions. Hence, it is not a conductor of electricity or heat.
Silver is a good thermal conductor as it's a metallic element with many free electrons available for heat transfer.
Electric current
Thermal energy exists in materials raised to a high temperature, because they can then transfer this energy to materials at lower temperatures. For example , heating radiators transfer energy to the building they are in. Electric energy is basically the movement of free electrons in a conductor, which can then do work such as turn an electric motor, or indeed produce thermal energy in a heating element,
The heating element inside every electric heater is simply an electrical resistor, and works on the principle of Joule heating: an electric current through a resistor converts electrical energy into heat energy. Joule heating, also known as ohmic heating and resistive heating, is the process by which the passage of an electric current through a conductor releases heat. Joule heating is caused by interactions between the moving particles that form the current (usually, but not always, electrons) and the atomic ions that make up the body of the conductor. Charged particles in an electric circuit are accelerated by an electric field but give up some of their kinetic energy each time they collide with an ion. The increase in the kinetic or vibrational energy of the ions manifests itself as heat and a rise in the temperature of the conductor. Hence energy is transferred from the electrical power supply to the conductor and any materials with which it is in thermal contact.
Wood is a thermal insulator. It is a poor conductor of heat.
The thermal conductivity of a perfect conductor is 1
Something that conducts thermal energy well is a thermal...conductor. If it does not conduct well it is called an insulator.