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#31 |
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Beryllium (symbol Be) is the fourth element of the periodic table, with an average atomic mass of approximately 9. It is not found in a pure form in nature, most commonly in the form beryllium aluminum silicate (Be3Al2Si6O18), a picture of which is below. Pure Beryllium is brittle and greyish in color, also shown below. It is a solid at room temperature.
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#32 |
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Beryllium aluminum silicate Pure Beryllium
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#33 |
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The word Beryllium comes from Greek. It was also called Glucinium, from the Greek word for sweet, glykys. Beryllium tastes sweet, but should not be eaten to verify this.
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#34 |
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The Egyptians knew of both emerald and beryl, both forms of beryllium aluminum silicate. A French chemist, Nicholas Louis Vauquelin, determined Beryllium to be a distinct element in 1797, but it was not isolated until 1828, when the German chemist Friedrich Wöhler sucessfully isolated Beryllium from Beryllium Chloride.
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#35 |
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Beryilliums got nothing on Carbon
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#36 |
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The structure of a Beryllium atom is shown below.
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#37 |
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Beryllium is in the second column of the periodic table, meaning that it has two valence electrons. It commonly combines with Aluminum, Silicon and Oxygen to form beryllium aluminum silicate, and also Flourine and Chlorine to form beryllium flouride and beryllium chloride, respectively.
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#38 |
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Why do people want Beryllium, anyway?
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#39 | |
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Not the beryllium!!!!!!
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#40 |
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Beryllium is one of the lightest metals, and it also has a very high melting point of 1287 degrees celsius. In case you're wondering how that relates to anything, at 1287 degrees celsius a person would be instantly incinerated. Ouch. It is also easily permeable by X-rays and is highly conductive of heat. What's not to love?
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#41 |
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Generally, Beryllium is used to make the alloy Beryllium Copper, which is used in such handy devices as springs, electrical contacts, aircraft parts, missiles, spacecraft parts, brake discs on the space shuttle, and other myriad, useful and edible items. Well, not edible, but useful and diverse.
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#42 |
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Other stuff about Beryllium
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#43 | |
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Let's not take another 50 years. |
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#44 |
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Beryllium is dangerous. It is known to be carcinogenic in humans. Curiously, beryllium tastes sweet but since it is toxic this is not a recommended way to test for the presence of beryllium. There are many safeguards for working with beryllium.
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