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Tri Phan 28/9/11 Per 4 ar Argon is a chemic ingredient represented by the sign Ar. Argon has nuclear physique 18 and is the third chemical element in convocation 18 of the periodic table ( dread gases). Argon is the third almost common gas in the earth atmosphere, at 0.93%, capacity it more common than coke dioxide. Nearly all of this are is radiogenic atomic number 18-40 derived from the decay of potassium-40 in the Earths crust. In the universe, are-36 is by far the restricting to common argon isotope, organism the preferred argon isotope produced by stellar nucleus synthetic thinking in supernovas. Argon is silent in the solid and watery state Argon is a mono-atomic, under standard conditions, colorless and odorless gas, which at 87.3 K (-185.8 ° C) and condensed at 83.6 K (-189.3 ° C) frozen. same the other horrible gases hale out helium argon crystallizes in a brick-shaped enveloping(prenominal) packing with the lattice parameters a = 526 pm. Like all the stately gases argon has nevertheless shut shells (noble gas configuration). This can be explained that the mono-atomic gas always exists and on that point reactivity is low. With a entry of 1.784 kg/m3 at 0 ° C argon is heavier than air, so it sinks. In the phase plat of the triple point is 83.8 K and 0.689 bars, the critical point at 150.86 K, 4896 kPa and a critical immersion of 0.536 g/cm3.

Argon is slightly fat-soluble in water. One l of water at 0 ° C and 1 atmospheric pressure will brush off a maximum of 5.6 g of argon As a noble gas argon is extraneous and does not react really fast with other elements or heterogeneouss. So far only one by experimentation indifferent(p) compound of argon is known. It is the Argonfluorohydrid harp, the by photolysis of heat content fluoride, which are obtained in an argon matrix at 7.5 K and could be place by new lines in the unseeable spectrum. Above 27 K it decomposes.  According to theoretical calculations there should also be more or less other compounds of argon met still and decompose relatively heavy. However, this was experimentally not been shown. Argon...If you want to educate a ample essay, post it on our website: Ordercustompaper.com

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