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How do electrons help in transfer of heat energy?
when a substance is heated,the molecules in that substance get heat energy. we know that all of the molecule in the substance having electrons. when substance is heated. electrons becoming high energetic.and they move faster and also energy will propagate though out the substance
Why do each substance have different amount of resistance?
Resistance of a material is depend on the force required to withdraw electrons from the atoms of that material.
How many valence electrons does insulator have?
It is not the number of valence electrons that an insulator has that is important. It is the way the valence electrons are "arranged" in the structure of the material that matters. If not all the valence electrons of a substance are "involved" in the structure of the material, then these electrons are said to be free electrons. They move about in the substance, and are free to contribute to electron flow. The metals are examples. In contrast with this, if all the electrons are bound up in a material, they are not free to support current flow, and the material is said to be an insulator. Said another way, if the valence electrons in a material are in a Fermi energy level that overlaps the conduction band for that material, the material is a conductor. In an insulator, the valence electrons are all in Fermi energy levels that are below the conduction band for that material, and it is an insulator. Applying a voltage to an insulator will not "lift" the valence electrons up into the conduction band to allow them to support current flow.
What kind of substance contains a sea of electrons?
A substance that contains a sea of electrons is typically a metal. In metals, the outer electrons are free to move throughout the material, creating a "sea" of delocalized electrons that allows for good electrical conductivity.
What substance that allows the flow of free electrons?
A substance that allows the flow of free electrons is called a conductor. Conductors have loosely bound electrons that can move easily, allowing electric current to flow through them. Metals such as copper and aluminum are commonly used as conductors in electrical circuits.
What slows the flow of electrons?
Factors that can slow the flow of electrons include resistance in the conducting medium (such as a wire), the presence of impurities or defects in the material, and increasing the length of the conducting path. Additionally, temperature can also impact electron flow as higher temperatures can increase resistance in the material.
Is diamond a magnetic material?
No, diamond is not a magnetic material. It is a diamagnetic substance, which means it is repelled by magnets. This is because the electrons in diamond are tightly bound and do not align in a way that would make it magnetic.
What is electricity and what causes electrical currents?
the power that would make changes in the electron places in the material or substance is called electricity........... any substance which can produce a force to move electrons (also protons).
A substance is one that has unpaired electrons that are aligned in a particular direction?
The substance described is likely a paramagnetic material. Paramagnetic materials have unpaired electrons whose spins align in the presence of a magnetic field, causing them to be weakly attracted to the field. This property is due to the presence of unpaired electrons that can be influenced by external magnetic fields.
The amount of material in a substance?
The amount of material in a substance is mass.
What makes a substance a conductor or insulator?
Well lets first define the word conductive as the ability to freely pass the flow of electrons from one shell to another. An insulator is a material that is adverse to the flow of electricity across it and will not cause the electrons within it to cascade the valance shell and transfer electricity.
How does friction cause insulators to become charged?
Friction involves two substances rubbing against each other. As this happens, one substance may lose electrons, thus becoming positively charged. Consequently, the other substance gains these electrons, becoming negatively charged.
