Exercise Reading Text Hiragana-Katakana \ \ Hiragana and Katakana Learn Reading text

You know what it is fluorine? Try opening your periodic table in group VIIa dancari period 2 must meet it with the element that has the symbol ... Elements F Well, why this time I will discuss about Fluorine? implant dentar Because implant dentar of that I will discuss is the most reactive element and the most electronegative of all the elements loh ... Liquid Fluorine Fluorine You know what his form is like? It turns out that Fluorine Gas # Alay friends. Because the Fluorine is in group VIIa, he includes Halogen. Mr. F = 19 g / mol Fluorine implant dentar gas in the form of tablets that are very dangerous, till-till implant dentar can result in death. You know at what temperature Fluorine can freeze? Yes, at a temperature implant dentar of -219.6 C. For medidihkannya differ only 31.47 scale, which is -183.13 C. Now, we move on to the next conversation. How Fluorine nature itself? Fluorine properties: 1. Most electronegative and reactive of all elements implant dentar 2. Tablets also can arise when brought near a fire in objects / materials made from oil and gas 3. Nature toxic, corrosive implant dentar and very smelly ^, ^ 4. Rarely found in the wild Why should she called implant dentar Fluor huh? Fluorine was first invented by a French scientist named Henri Moissan in 1886. Fluor's name is taken from the Fluo word in Latin means to flow. To get 100% fluorine is very difficult to obtain. Fluorine is very very very reactive to oil and gas, is also an element that is very free. However, the fluorine gas can be created artificially tablets, that is by electrolysis. What dielektrolisiskan? Which is dielektrolisikan HF (acid fluoride) and molten salt potassium fluoride (KF). Well, the above electrolysis right to obtain gas, liquid reply to the how? To obtain the liquid Fluorine can be done by passing gas on a metal or rubber tube which is surrounded by liquid air. How to mengelektrolit fluorine gas? Hirofluorida acid obtained from the processing of fluorite with Sulfur is used for the fluorine gas mengelektrolit. What is the benefit for humans? implant dentar AC knows right? Freon know it, which is used for cooling. implant dentar It is made of CFC, namely chlorofluorocarbons. But, the problem can attenuate lapizan CFC ozone, so now it is rarely used. Know the right plastic? Well, it's made of compounds Politetra Flouretilen or lay people usually refer to Teflon. These compounds are commonly used in the automobile industry. These compounds can also be used for coating the inside of a pot, crock and other cookware. Other benefits: - As a lubricant that is stable in the fluorine-containing hydrocarbon liquid - gaseous diffusion process for the fuel explosives, such as nuclear and atomic bombs, obtained from compounds of uranium hexafluoride. - To reduce implant dentar damage implant dentar to the teeth, but in small quantities. But if used too much can cause damage to the tooth enamel. What if fluorine gas Regarding our skin? Fluorine gas is on our skin will react, causing severe chemical burning, blistering process to result in death due to burns. implant dentar OK? mmm ... Share It ^ _ ^
elektronegatifan it is the tendency of an atom to attract implant dentar electrons .. nah, fluorine with 7 valence electrons, has the appeal of a more powerful atom to attract an electron. Conclusion: all elements with 7 valence electrons have the greatest electronegativity is class VII A Clear
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Exercise Reading Text Hiragana-Katakana \ \ Hiragana and Katakana Learn Reading text