because they have many free electrons that can carry the electrical current
Silicon can conduct electricity, but not nearly as well as copper does. The conductivity of silicon depends a great deal on what is mixed with it, because this affects how tightly it holds on to its outer electrons. Silicon is the main ingredient in glass, which does not conduct electricity. Silicon is also used to make semi-conductors, which do conduct electricity, but still not as well as copper does. (That's why they're called semi-conductors instead of conductors.) It is a semiconductor and can be controlled by doping it with Arsenic, Indium, Gallium, etc. to become an insulator or good conductor when applying a voltage across it. For more information see the Related link shown below.
Poor conductors of electricity include plastics, woods and gases, in other words, anything that is not a metal. Poor conductors of heat include foam, air and some fabrics, such as felt. Plastic for example is a poor conductor because it is an insulator. Plastic is made up of a substance that dose not allow the flow of electrons.
No, polythene is a plastic and that cannot conduct electricity.
For a substance to conduct electricity, it must either have free electrons or have mobile ions. Since in solution NaCl dissociates into Na+ and Cl- ions, it is capable of conducting electricity. In other words, aqueous NaCl conducts electricity. Molten sodium chloride is also a good conductor.
Nonmetals are generally poor conductors of heat because they have fewer free electrons available for transferring thermal energy. Materials like wood, plastic, and rubber fall within this category and exhibit low thermal conductivity.
Electrical conductivity is the reciprocal of resistivity, and is measured in siemens per metre (S/m).
distilled water does not contain ions, without ions it can not produce and electrical charge. In other words DISTILLED WATER does not conduct electricity.
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).
Yes, because the lemon juice is so strong there is no chance that it cannot conduct electricity, this answer is science proven and if you type in the exact key words you can do an experiment with a lemon that conducts electrons which makes electricity. Great question!
Some words that can be made from 'simple' are:elmII'mimpmemilepiepileslimslimeslipsmile
Her words are mostly simple but through those simple words she creates such beautiful imaginations in the minds of the readers which you cannot do with elaborate words.
There are many key words to understand when discussing electricity. Electricity flows in a current. The unit of power of electricity is a watt which refers to the rate of work done. A volt is force at which electricity moves from its origin through a conductor and to the place of use.