In the form of edible or table salt it is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses.n the language of close-packing, the larger chloride ions are arranged in a cubic array whereas the smaller sodium ions fill all the cubic gaps (octahedral voids) between them. This same basic structure is found in many other compounds and is commonly known as the halite or rock-salt crystal structure.
1 Most dental schools are 4 years, a few are 3. About half of the orthodontic schools are 2 years and the rest are 3 years. 2  it takes 4 years of undergraduate education (usually, it can take 2-3 if you have exceptional credentials) and then 3-4 years in dental school (depending on a particular schools curriculum).
How long is medical school? The answer to your question is four years. Medical school is unlike any other education you can possibly get. Out of the four years of medical school you should expect to spend your first two years in the basic sciences followed by two more years doing your your clinical rotations. You cannot become a doctor without first knowing the basics of medicine, hence the name.