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Are amorphous and crystalline the same?
Amorphous solids are non-crystalline solids that lack the long-range order of crystal structures. Even amorphous solids have some short-range order.
What is an amorphouse?
"Amorphous" refers to a substance that lacks a distinct crystalline structure, meaning its molecules are arranged in a random or disordered manner. Amorphous materials do not have a set melting or boiling point like crystalline substances and include materials like glass and some polymers.
Do all minerals have crystalline structures?
No, not all minerals have crystalline structures. Some minerals, called amorphous minerals, do not have a regular crystalline structure and instead have a disordered atomic arrangement. Examples of amorphous minerals include opal and glass.
What are the differences between crystalline and amorphous compounds or elements?
Elements themselves are not crystalline or amorphous. Instead this describes the structure of certain elements and compounds in the solid state. For instance, a single element can be found in both a crystalline form as well as an amorphous form. A crystalline solid is one in which there is a regular repeating pattern in the structure, or in other words, there is long-range order. In fact, you can completely describe the entire crystal by describing the single "repeat unit." For instance, as a simple example, if I have the pattern ABCABCABCABCABC... (that repeats infinitely) I can completely describe it by just saying it is "ABC" over and over again. In a 3-dimensional crystal, this repeat unit is called the "unit cell." Some crystalline solids are diamond, table salt, and many types of minerals found in the earth. An amorphous solid is one which does not have long-range order. In other words, there is no repeat unit. To contrast the example above, it would now be: ABCBCABBCACBACBAC... where there is no way to figure out what will be the next letter. Some examples of amorphous solids are glass (in windows, for example), wax, and plastics. If a liquid cools very quickly, the molecules will not have time to arrange themselves in the most favorable pattern (which will almost always be crystalline), and so they are locked into a disordered solid. Silicon is a common solid that can be found in both amorphous and crystalline forms, depending on how it is manufactured. Crystalline silicon is much harder to grow, but it is what is used in computer chips. Amorphous silicon is much cheaper and easier to grow, and is commonly used in solar panels.
Are all minerals crystalline?
A mineral, by definition is an inorganic solid with a crystalline structure formed naturally. Wood, paper, or any other organic solids are not minerals because they have no crystalline structure and form organically. Plastic is not a mineral either because it is made synthetically out of organic materials. Some organic materials like coal and other hydrocarbons are considered minerals economically. Bones and teeth contain hydoxylapatite that is organically formed but is still considered a mineral, so there are exceptions. Whewellite is organically formed but has a crystalline structure, and is considered a mineral.
Are amorphous and crystalline the same?
Amorphous solids are non-crystalline solids that lack the long-range order of crystal structures. Even amorphous solids have some short-range order.
What are the difference between a crystalline structure and an amorphous structure?
I do not know of any polymers that are 100 percent crystalline. This is because most of the polymers you can make or buy have different molecular weights. So unlike small molecules, there are some differences in sizes between polymers. These differences prevent the polymer from being able to pack perfectly. This is the main reason why crystalline polymers also have amorphous regions.
Are all ionic compounds crystalline?
No, not all ionic compounds are crystalline. Some ionic compounds may form amorphous solids instead of crystalline structures under certain conditions.
Are covalent compounds crystalline solids?
Not usually no. However, covalently bonded polymers will often have crystalline domains - these are called spherulites. So the polymer is rarely perfectly amorphous. PET is one such polymer. see related link for more information.
What is an amorphouse?
"Amorphous" refers to a substance that lacks a distinct crystalline structure, meaning its molecules are arranged in a random or disordered manner. Amorphous materials do not have a set melting or boiling point like crystalline substances and include materials like glass and some polymers.
Do all minerals have crystalline structures?
No, not all minerals have crystalline structures. Some minerals, called amorphous minerals, do not have a regular crystalline structure and instead have a disordered atomic arrangement. Examples of amorphous minerals include opal and glass.
Is glass a form of plastic?
Glass is an amorphous (non-crystalline) material composed mostly of silicon dioxide. Plastic is a broad term for thousands of different polymers, which are manmade hydrocarbons. Some are crystalline, and some are not.
What is the definition of amorphous solids?
Amorphous solids do not have a definite shape or long-range order in their atomic structure. They lack the organized structure found in crystalline solids and exhibit a disordered arrangement of atoms or molecules. Some examples of amorphous solids include glass, plastic, and some polymers.
Does corn starch have a crystalline structure?
Corn starch does not have a crystalline structure; it primarily exists in an amorphous form. While it can form granules that may exhibit some ordered regions, the overall structure is more disordered, which is characteristic of many polysaccharides. Upon heating and gelatinization, corn starch swells and loses any residual crystalline characteristics, further emphasizing its amorphous nature.
Are the covalently bonded molecules crystalline?
Not necessarily. Covalently bonded molecules can form both crystalline and amorphous structures depending on factors like the molecular shape, size, and interactions between the molecules. Some covalently bonded molecules can arrange themselves in a crystalline lattice, while others may form amorphous solids with no long-range order.
What are the differences between crystalline and amorphous compounds or elements?
Elements themselves are not crystalline or amorphous. Instead this describes the structure of certain elements and compounds in the solid state. For instance, a single element can be found in both a crystalline form as well as an amorphous form. A crystalline solid is one in which there is a regular repeating pattern in the structure, or in other words, there is long-range order. In fact, you can completely describe the entire crystal by describing the single "repeat unit." For instance, as a simple example, if I have the pattern ABCABCABCABCABC... (that repeats infinitely) I can completely describe it by just saying it is "ABC" over and over again. In a 3-dimensional crystal, this repeat unit is called the "unit cell." Some crystalline solids are diamond, table salt, and many types of minerals found in the earth. An amorphous solid is one which does not have long-range order. In other words, there is no repeat unit. To contrast the example above, it would now be: ABCBCABBCACBACBAC... where there is no way to figure out what will be the next letter. Some examples of amorphous solids are glass (in windows, for example), wax, and plastics. If a liquid cools very quickly, the molecules will not have time to arrange themselves in the most favorable pattern (which will almost always be crystalline), and so they are locked into a disordered solid. Silicon is a common solid that can be found in both amorphous and crystalline forms, depending on how it is manufactured. Crystalline silicon is much harder to grow, but it is what is used in computer chips. Amorphous silicon is much cheaper and easier to grow, and is commonly used in solar panels.
What kind of solid has an irregular pattern of particles?
A solid with an irregular pattern of particles is called an amorphous solid. Unlike crystalline solids, which have a regular and repeating pattern of particles, amorphous solids have particles arranged in a random and disordered manner. Examples of amorphous solids include glass and some types of plastics.
