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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.
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Is a metal and nonmetals are both good conductors?
Metals are good conductors. Some non-metals are good conductors, but many others are not.
Is it true that nonmetals are good conductors of heat and electricity?
Some nonmetallic materials are good conductors, graphite being an example. In this form, it is considered a semi-metal for that reason. Normally, however, nonmetals are not good electrical conductors.
Why are metals good for making pots?
Metals are easily shaped and are good conductors of heat.
These materials are good conductors of heat?
Metals
What are most types of good conductors?
Metals
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.
Is a metal and nonmetals are both good conductors?
Metals are good conductors. Some non-metals are good conductors, but many others are not.
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
Why is an alumininum a good conductor?
because its a metal and metals are good conductors of heat
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.
Are metals conductors or insulators?
In general, metals are good conductors of heat and electricity.
What are metals good for?
metals are good conductors of electricity and heat!
Are metals and nonmetals both good conductors?
no because metals conduct heat and electricity well, but nonmetals do not
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 the all metals?
metals are good conductors of electricity
