Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What is a covalent crystal?
A covalent crystal is one in which the lattice structure is held together by powerful covalent bonds. These crystals tend not to be soluble in water and have a much higher bond strength than ionic crystals. For example, silica, SiO2, does not dissolve in water and has a high melting point. Silica is what glass is made out of. Imagine trying to make a glass out of salt crystals; it would dissolve before you could drink a glass of water out of it! Solubility is a major difference between covalent and ionic crystals.
Diamonds are a great example of how strong the bonds in a covalent crystal can be. The lattice structure of diamonds produces the hardest known substance in the universe.
To complicate things, the vast majority of complex minerals are a combination of ionic and covalent bonds. These crystals will not be discussed in depth in this lesson, but it is important to know that this third category exists, and it is the largest category of minerals and crystals. If you observe the complex formulas of many minerals, like muscovite, which is KAl3Si3O10(OH)2, you will see that it is not so cut and dry what type of bond is holding these atoms together. Is this a covalent or ionic mineral? The answer is: it is both.
explain the encryption model
Explain the Hypersecretion during childhood Hypersecretion during childhood: Due to an increased secretion of the growth hormone, gigantism occurs. There is an excessive skelet
NEED FOR SAFETY AND HEALTH REGULATIONS : Accidents in work place are caused by negligence at some level. Legal control is required when individuals and organisations fail to reali
explain what ausubel''s theory say about learning
online tutoring
Will we ever go beyond The Milky Way to explore other galaxies?
In Pursuit of Starlight: The easiest method of studying light from a cosmic object is to collect it through a telescope and record it on a photographic plate. photographic plat
What are the Advantages of Acid Soils The acid soils, formed by any of the above processes, behave as very strong acids so much so that pH is quite low even in partial convers
Describe Biosynthesis of Nonessential Amino Acids ? This label 'nonessential' may mislead some people into believing that we don't need it. But, in essence, "non essential" as
FIRST AID PROCEDURE FOR UNCONSCIOUS CASUALTIES : Let us now discuss the first aid procedure for unconscious casualties. The common causes of unconsciousness in a laboratory accide
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd