PontoTriplo.org
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Ponto Triplo: Um Blog com Links para os Melhores Sites de Química
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Element Atomic Number Quiz
The atomic number of an element is the same as its number of protons. The atomic number determines an element's order in the periodic table. Do you know the numbers of the first few elements? Here's your chance to test yourself, while learning some facts about the elements, too. Take the quiz...
Make Ice Cream to Learn Chemistry
Learning about chemistry isn't always about textbooks the thickness of phone directories or laboratories that smell like chemical factories. There are fun, practical ways to learn about concepts such as freezing point depression, phase changes, cryogenics, and colligative properties. For example, you could make ice cream:
Learn about Lithium
The element lithium is a member of the alkali metals group. The metal has the highest specific heat of any element. Although it is found in several minerals, lithium doesn't occur free in nature. Its salts burn with a red flame, though the pure metal burns white. In everyday life, you can find lithium in rechargeable batteries, such as those used in cell phones and laptops. As the lighest of the metals, it's also found in strong, lightweight alloys. Lithium mixed with oil is used as an all-purpose lubricant. Lithium carbonate is a drug that is sometimes used to treat manic depressive disorder. Get more lithium facts...
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