Sodium chloride is an ionic compound having sodium and chloride ions in its structure. Ionic compounds do not conduct electricity in solid state because ions are fixed in position and cannot move but in aqueous solution and in molten state they conduct electricity as ions are free to move.
Why solid sodium chloride does not conduct electricity but when molten it does conduct electricity?
Solid ionic compounds do not conduct electricity because the ions are held firmly in place. The ions cannot move to conduct the electric current . But when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.
Why does the solution of sodium chloride conduct electricity?
When the sodium chloride dissolves in water, the sodium atoms and chlorine atoms separate under the influence of the water molecules. They’re free to move around in the water as positively and negatively charged ions. This separation of charge allows the solution to conduct electricity.
Why does liquid iodine does not conduct electricity?
Conductor of Eletricity: Iodine does not conduct electricity since each molecule of iodine comprises two iodine atoms joined by a covalent bond that cannot be excited sufficiently to transfer electrical energy.
Why is sodium oxide a non conductor of electricity?
(a) Explain why solid sodium oxide is a non-conductor of electricity. 1. The ions are bound tightly to a crystal kebice and are not free to move.
Why do liquids not conduct electricity?
The ions are able to carry electric current through a solution. The more ions present, the more current can be carried. Pure water forms very few ions and does not conduct electricity very well. … Some liquids such as oil or alcohol do not form ions and do not conduct electricity.
Is sodium a good conductor of electricity?
Pure sodium (Na) is a good conductor of electricity because the 3s and 3p atomic bands overlap to form partially filled conduction bands.
Why do non-metals do not conduct electricity?
Note: Non-metals are considered as insulators because they have extremely high resistance to the flow of charge through them. The atoms hold onto their electrons tightly and so they cannot conduct electricity.
Why does sodium conduct electricity in the solid state?
In its solid state, sodium chloride (like many other ionic compounds) have fixed ions. This therefore means that the ions cannot move freely, a condition for the conduction of electricity. However, when it is in its molten state, the ions are free to move around, thus making them free to conduct electricity.
Why sodium in both the solid and molten form is a good conductor of electricity whereas sodium in the gaseous state is a poor conductor of electricity?
Sodium’s sea of delocalized electrons among the unipositive ions present in the structure is what gives it its conductivity. These delocalized electrons are present in both a solid and molten state, therefore sodium can conduct electricity in both states.
Is sodium chloride a good conductor?
Sodium Chloride in its solid form is a non-conductor of electricity because it does not have a metallic structure where there would be a shell of electrons to conduct electricity.