Because an electric current is basically electrons moving along, so if there are more slightly freer electrons there wil be a greater facility for electron movement.
The valance electrons.
No, water is not a better conductor than metal. Metal is a much better conductor of electricity than water because of its free-flowing electrons that allow for easier passage of electric current. Water, on the other hand, is a poor conductor of electricity due to its lack of free electrons.
Magnesium metal is a better conductor than Sodium metal because it has more free electrons to carry electric charge due to its atomic structure. Magnesium has two electrons in its outer shell, compared to Sodium's one, making it a more efficient conductor of electricity. Additionally, the higher atomic mass of Magnesium allows for better mobility of electrons, resulting in higher conductivity.
First we have to define the word an electron, An electron is negatively charged particle. A metal is a substance consists of number of both electrons and protons. Electrons emitted from the metal surface through different ways such ways as Thermionic, Photoelectric, etc. Free electrons of conductor are electrons emitted from conductor when it disturbed through ways as mentioned above
When a potential difference exists between two points of a conductor, electrons slowly drift between those two points along that conductor. If there is no potential difference within the metal, then the electrons simply float randomly between atoms within the metal. Electrons would only oscillate in response to an external, oscillating voltage.
Neon is neither a metal nor non-metal. it is a noble gas.
metal has free electrons
Graphite is a non-metal conductor due to its structure that allows electrons to move freely between its layers.
The electrons in a conductor will support the movement of electric current. A conductor is defined as a material with a number of electrons in its makeup that are actually in what is called the conduction band. The conduction band is an energy level where electrons must be to permit conduction in a material. If the minimum energy in the conduction band in a material is such that a lot of electrons in that material are already at or above that level, then these electrons will be available to support current flow. Remember that electron current flow is moving electrons, and it is not about sending an electron into a conductor, like a wire, at one end and getting that same electron out at the other. It is about sending a bunch of them in at one end, and all the electrons already in the conductor move over and a bunch come out the other end. The electrons already in the conduction band within the conductor support current flow in this way.
the electron "gas" of unbound conduction band electrons present in all metals
Metal is a better conductor of heat compared to plastic. Metals have free electrons that can carry heat energy quickly, while plastic is an insulator and does not allow heat to easily pass through it. This is why metal objects feel colder or hotter to the touch compared to plastic objects at the same temperature.
A current carrier can be any of the following: valence electron in a conductor, free electron in a semiconductor or metal, ion in an electrolyte, or proton in a hydrogen ion conductor. Ultimately, it depends on the material and conditions under which the current is being carried.