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- ELECTRONIC PROCESSES IN IONIC CRYSTALS!
The attractive forces between oppositely charged ions are significantly stronger than those between neutral atoms and account for the properties exhibited by ionic crystals. Sodium chloride, more commonly known as table salt, is an example of an ionic crystal.
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Ionic crystals are soluble in water. When dissolved, the ions making up the crystal dissociate, or separate, freeing them to carry electrical charge through the solution.
Polarisability and dielectric constant of ionic crystals
Ionic crystals in a molten state also conduct electricity well. Like dissolving the crystals in water, melting them allows free ions to move to positive and negative poles. The strength of the bonds between ions in ionic crystals make them quite hard when compared to other types of crystals.
Despite their hardness, ionic crystals are brittle. Under pressure, ions within the crystal that have the same charge slide into alignment.
Electronic Processes Ionic Crystals
The resulting electrostatic repulsion between like ions causes the crystal to split. When a substance is in its solid form, its atoms are so tightly bound that they remain in a relatively fixed position. Heating the solid causes the atoms to move and although they remain bound to each other, the attachments are looser and the solid liquefies. Heating a liquid causes its particles to eventually overcome the bonds that hold them together and the liquid vaporizes.
Crystals of two size ranges were bombarded at high intensity, and evidence of a generalized photographic effect within the ionic group of solids is presented.
The first group of crystal specimens ranged in size from 0. Ionization pulses were observed to occur in the region of the specimen during bombardment.
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The second group ranged in size from 10 to 0. A process has been suggested to explain the phenomenon of ionic crystals which appear to lose their centers under high electron beam intensity in the electron microscope. If you have an individual subscription to this journal, or if you have purchased this article through Pay-Per-view , you can gain access by logging in with your username and password here:. Advanced Search.
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