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Because of the VALENCE CLOUDS! Look this up. The atoms bond by these and share electrons. As electricity flows in a cable, what is actually happening is the negatively charged electrons are moving along one at a time from atom to atom. Larger currents mean the electrons move faster. Electricity flows from negative to positive! Metals have good conductivity because of the freedom the electrons have to move around. This also explains magnetic properties in metals (a similar effect) and the greater the freedom the better the conductor. Plastics; elasto-mers, poly-mers and mono-mers bond in a manner that does not allow this movement of electrons and as such do not conduct electricity.
What else can I help you with?
Is it true that nonmetals are good conductors of heat and electricity?
No, nonmetals are generally poor conductors of heat and electricity. This is because they do not have freely moving electrons that can carry the heat or electric charge effectively. Metals, on the other hand, are good conductors due to the presence of delocalized electrons.
Is a metal and nonmetals are both good conductors?
Metals are generally good conductors of electricity, as they have free-moving electrons that can carry electric current. Nonmetals, on the other hand, are poor conductors of electricity, as they lack free-moving electrons to conduct electricity effectively.
What statement about metals true?
Metals are typically shiny, malleable, and good conductors of electricity.
Why are most metals called good conductors?
Most metals are good conductors of electricity because they have a high density of free electrons that are able to flow easily through the material when a voltage is applied. This ability to carry electric current efficiently is what makes metals good conductors.
What do metals contain that make them good conductors?
Metals contain free electrons that are able to move easily within the material. These free electrons are responsible for carrying electric current through the metal, making metals good conductors of electricity.
Why do metals good conductor of electricity?
Metals are good conductors because of the high mobility of electrons in metals.
Are metals and nonmetals and nonmetals are both good conductors?
Metals are good conductors. Some non-metals are good conductors, but many others are not.
Why are metals use for power cables?
Because metals are in general good conductors of electricity.
Why is an alumininum a good conductor?
because its a metal and metals are good conductors of heat
Metals are good conductors of electicity?
the majoriy of metals are good conductors such as cooper and iron other metals such as gold are not
Are metals conductors or insulators?
In general, metals are good conductors of heat and electricity.
Why are metals such good conductors?
because of their high density. They are good conductors of electricity because their crystalline formation allows negative flowing neutrons to pass through
What are metals good for?
metals are good conductors of electricity and heat!
Are all types of metals good conductors?
No, not all metals are good conductors. Some metals, such as copper and aluminum, are excellent conductors of electricity and heat due to their large numbers of free electrons. Other metals, like lead and stainless steel, are poor conductors because their electrons are not as free to move.
Are metals and nonmetals both good conductors?
Metals are generally good conductors of electricity due to their free electrons that can move freely within the material. Nonmetals are poor conductors of electricity because they lack free electrons for efficient conduction.
Are metals good or bad conductors?
using the energy band model, i would rank metals as good conductors. The energy gap in metals is negligible, that is the valence band and the conduction band overlap. Thus it is very easy for electrons in the valence band to move to the conduction band thereby conducting currents. Hence metals are good conductors.
What are the all metals?
metals are good conductors of electricity
