metals have free electrons that can bounce from one to another hence the 'flow' of electrons. But things like table salt, or NaCl are so tightly bound together, that the electrons dont want to leave their cozy spot they are in and so wont bounce to a different spot without something drastic happening... for example a nuclear explosion.
All types of covalent compounds are not very good conductors of electricity. However, ionic compounds in their molten state and metallic substances are very good conductors of electricity.
Ionic crystals are not good conductors because they are tightly bonded and the ions are not able to move freely
(in short) No, whilst in their solid state ionic crystals are very poor conductors of electricity, however when molten or dissolved their ions are able to carry charge, therefore they are very good conductors of electricity when molten or dissolved in e.g. water. Pure water is a very poor electrical conductor too, it's the dissolved ions that carry the charge.
No
Ions of opposite charges are involved in ionic bonding where the metal atoms form metallic bonds.
Ionic has good conductors of electricity
All types of covalent compounds are not very good conductors of electricity. However, ionic compounds in their molten state and metallic substances are very good conductors of electricity.
Ionic crystals are not good conductors because they are tightly bonded and the ions are not able to move freely
Because after dissociation ions are formed ionic salts can be electricity conductors. Also melted ionic salts are electricity conductors.
(in short) No, whilst in their solid state ionic crystals are very poor conductors of electricity, however when molten or dissolved their ions are able to carry charge, therefore they are very good conductors of electricity when molten or dissolved in e.g. water. Pure water is a very poor electrical conductor too, it's the dissolved ions that carry the charge.
No
Ionic
In the solid state ionic crystals are not dissociated in ions.
Ions of opposite charges are involved in ionic bonding where the metal atoms form metallic bonds.
An ionic bond is an electrostatic attraction between ions of opposite charge. A metallic bond is sometimes described as a sea of electrons- this is a delocalised bond- electrons are free to move throughout the metal lattice and metals are conductors of electricity.
Ionic compounds are conductors in solution or melted.
The types of crystalline solids that are usually good conductors of heat and electricity are those that have valence electrons. It is the valence electrons that are responsible for the conduction of heat and electricity.