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TRENDS IN ELECTRONEGATIVITY OF 3rd PERIOD

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Electronegativity is a measure of the tendency of an atom to attract a shared pair of electrons towards itself. Elements Na Mg Al SI P S Cl Ar Electronegativity 0.93 1.13 1.81 2.02 2.19 2.58 3.16 - Note that EN of Ar is not included. Electronegativity is related to the tendency of an atom to attract the shared pair to attract the shared pair of electrons. Since Argon does not form covalent bonds, you obviously cannot assign it an electronegativity value. Moving from one elements to the next across the period, nuclear charge increases by 1 unit and one electron is added to the outer shell. As the positive charge on the nucleus rises, the atom has increasing electron attracting power and therefore an increasing electronegativity.
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Brain

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Brain Of  Human This article is concerning options specific to the human brain. For basic info concerning brains, see Brain. Human brain Skull and brain traditional human.svg Human brain and os Cerebral lobes.png Cerebral lobes: the lobe (pink), lobe (green) and lobe (blue) Details Latin    neural structure System     Central systema nervosum Artery     Internal arterial blood vessel arteries, bone arteries Vein     Internal vena, cerebral veins, external veins, basal vein, terminal vein, vein, neural structure veins Precursor     Neural tube Identifiers TA     A14.1.03.001 FMA     FMA:50801 Anatomical word The human brain has an equivalent general structure because the brains of different mammals, however encompasses a a lot of developed cerebral mantle than the other. giant animals like whales and elephants have larger brains in absolute terms, how...
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How To Make Coffee

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Coffee is one of the most popular beverages all over the world. You can prepare coffee in a number of different ways and here is an article that will tell you how to make coffee with and without using a coffee maker. A yummy refreshing cup of hot coffee makes a good start of the day. The definition of great cup of coffee changes from person from person, because each of us enjoys different tastes of coffee. Some like to have strong coffee while some enjoy drinking subtle coffee. Some of us like to add other flavors to the coffee, like vanilla, while some prefer drinking plain coffee. So, we can say that there are innumerable ways to make a great cup of coffee. Right selection of coffee beans, proper grinding, brewing, etc., together result in a wonderful coffee. So, do you want to know how to make coffee in different ways? Then take a look at some recipes given below. Making Coffee With Coffee Maker Coffee maker is one of the greatest inventions that can yield you a great ...
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