wood, crystal, diamond, stone, granite
This is sort of a complex answer, so I'll separate it into parts that at least make sense to me.
The first answer is that given enough potential, anything will conduct electricity. There is a method of radioactive waste neutralization called volcanization that takes this principle to heart, in essence you put a piece of radioactive waste in the ground between two strong electrodes and jam so much potential that it literally glasses the ground and the waste.
The second answer applies to room temperature and common, mostly dry situations; only metals will conduct electricity. Dry salts and covalently bonded molecules, or other non-polar molecules will not conduct electricity. This has to do with metals electrical structure, they have this 'sea' of electrons that flow easily between metal atoms, whereas in ionic molecules electrons are stolen outright and the cyrstals are held together through electrostatic force, and in covalently bonded molecules the electrons are held in tight bonds between two atoms.
The third answer applies to when things are wet; metals still conduct, that's almost always a given, but when aqueous(dissolved) salts will make ions, which are charged particles, and will conduct. This is why pure deionized water is non-conductive, but tap water is. Its because tap water has many different salts and charged species capable of conducting in it. Polar molecules will also conduct electricity, albeit weakly.
TL;DR Metals always conduct, water will conduct when a salt is dissolved in it.
This is the definition of an "insulator". Materials that block or impede the flow of electrons will prevent electric current from completing a circuit.
rubber would be an example of something that does not allow electricity to move through it easily
The path of electricity is called a circuit.
Things that electricity move through easily are called conductors. The reason electricity moves through these materials more easily than others is that the electrons in these materials are not tightly bound or even associated with any particular atom. Physicist like to think of the the electrons in conductors as forming some kind of charged gas or liquid. They call it a sea of electrons. Please take note that I do not mean to send the impression that electrons in a conductor LITERALLY form a liquid or gas, but their movements are such to lend themselves to that analogy. We think of a wire kind of as a water pipe. One droplet of water entering the pipe on one side sends precisely one drop of water out of the other side. Really electricity is motion, the motion of charge carrier (electrons in metals). Their movement is a response to the electric field, which is a consequence (in a circuit) of a non-uniform distribution of charges.
That would be an impermiable materials.
As unsatisfying as I'm sure you'll find this, that depends on your definition of "electricity." If you mean electricity in the most conventional sense of an electrical current, electricity can move through any medium in which charge carrying quantons (protons, elecrtons, etc) can move at least somewhat freely.
rubber would be an example of something that does not allow electricity to move through it easily
uh, mostly metal.(obvious)
insulators
conductors
rubber would be an example of something that does not allow electricity to move through it easily
Rubber is what is known as an electrical insulator. The difference between insulators, which block the flow of electricity, and conductors, which permit the flow of electricity, lies in the availability of mobile electrons in the material in question. Electricity is composed of moving electrons. Some materials, such as metals, contain electrons that are easily moved, hence electric currents move easily in those materials. If a material does not have electrons that are easily moved, then it resists the flow of electrons.
I think you meant to say "... move through easily ?"Those are the materials known as 'insulators'.They include . . .-- pure water-- fiberglass-- wool-- stone-- many plastics-- wood-- air-- most glass-- sand-- newsprint
electricity doesnt move...its the electrons...rather free electrons in materrials that moves nd we call it as electric current
Heat moves easily through materials with delocalised electrons, that is electrons which are free to move through the substance. This happens in metals and graphite.
A conductor. Most metals are conductors-they enable electrons to move freely through them, carrying an electrical charge. Most non-metals (notably excluding graphite, an isotope of carbon) are insulators which means that they do not allow an electrical charge to be carried through them.
The path of electricity is called a circuit.
Materials in which charges do not easily move are called insulators or dielectrics.