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Why is polystyrene transparent?
One type of classification system for polymers is either amorphous or semi-crystalline structure. This amorphous polymer (from thermal processing) lacks the crystalline components that scatter light, therefore it is transparent in appearance.
Is polystyrene transparent?
One type of classification system for polymers is either amorphous or semi-crystalline structure. This amorphous polymer (from thermal processing) lacks the crystalline components that scatter light, therefore it is transparent in appearance.
Where do you find boron's?
A boron is brown colored, soft-brittle, and is either amorphous or crystalline. It can also be red or gray color too depending on its form. It is mainly removed from borax or kernite.
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.
What is the texture of selenium?
It is found either as a red amorphous powder or as a black powder (the two allotropes of selenium)
Is silicon a solid at room temperature?
At room temperature the element silicon is a crystalline solid.If it was not a crystalline solid, the computer you have in front of you would not be possible (or would be much bigger and consume much more power).Do not confuse the element silicon with various compounds called silicone, which are oils and polymers that have silicon atoms in their molecules instead of carbon atoms, and can be either liquids or solids. There are also silicon compounds that are gases (e.g. silane, chlorosilane, fluorosilane, chlorofluorosilane).
What charge particles would repel one another?
Two particles that have a charge of the same sign - that is, either two positive particles, or two negative particles.
Is white crystalline solid a compound or an element?
A white crystalline solid can be either a compound or an element. It depends on the specific substance in question. For example, table salt (sodium chloride) is a white crystalline compound, while pure elemental sulfur can also be a white crystalline solid. Testing and analysis are usually needed to determine whether the solid is a compound or an element.
Can oil and gas be classified as minerals?
obviously the previous answer is incorrect, the true answer is that natural gas and oil is NOT minerals because they both lack a crystal structure and a solid form. +++ That's not correct either: I am not sure about natural gas, but oil is regarded as a mineral. Although many minerals are indeed crystalline, that property does not necessarily define a mineral. Coal, iron-ore and clay are amorphous minerals, too, for example.
Can a magnet not be magnetic?
if it truly is a magnet, than no. however, you can demagnetize a magnet by dropping it or hitting it really hard to rearrange the domains within the magnet. Domains are the regions within a magnet that have particles that are either arranged so that the poles are attracted to each other or randomly arranged so that the particles are not magnetized at all. so if it is a magnet... it probably will be magnetic unless you take your anger out on it or something.
Electromagnetic radiation behaves as either a?
Wave or a Stream of Particles
Crystalline sedimentary rocks?
All sedimentary rocks are made by of deposition of the products of erosion either on land or more usually in water. Crystalline sedimentary rocks can be produced by the evaporation of a brine.
