American - Writer | -
When it comes to the periodic table, the United States really blew its chance to make a name for itself. If you look over a map of all the elements named for cities, states, countries, and continents, it's not surprising that European locales dominate the map.
Sam Kean
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After about 1940, scientists generally stopped looking for elements in nature. Instead, they had to create them by smashing smaller atoms together.
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Aluminum is the most common metal in the earth's crust, almost twice as abundant as iron. And one common class of aluminum minerals, collectively called alum, has been in use since at least Greek and Roman times.
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Entrepreneurs in the United States and Europe finally figured out how to separate aluminum from minerals cheaply and also how to produce it on an industrial scale.
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Radium, discovered by Marie and Pierre Curie in 1898, was especially popular: the 'it' element of its day. Radium glows an eerie blue-green in the dark, giving off light for years without any apparent power source. People had never seen anything like it.
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Your body thinks radium is a great thing to pack into bone - where it kills some cells outright and scrambles the DNA of others, causing problems like cancer.
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Many different elements can form isomers, but only a few elements on the periodic table, like hafnium, can form isomers that last more than fractions of a second - and might therefore be turned into weapons.
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There are a few elements - especially platinum and palladium - that have the amazing ability to absorb up to 900 times their own volume in hydrogen gas. To get a sense of the scale there, that's roughly equivalent to a 250-pound man swallowing something the size of a dozen African bull elephants and not gaining an inch on his waistline.
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Unlike uranium, plutonium was created in an American lab in 1940, but scientists soon realized that it could produce even wilder chain reactions and even bigger explosions. In fact, fearing another country would create it, too, the American government went to great lengths to keep even the existence of plutonium a secret.
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Scientists didn't discover the noble gas helium - the second most common element in the universe - on Earth until 1895. And they thought it existed in minute quantities only, until miners found a huge underground cache in Kansas in 1903.
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Scientists have continued to tinker with different elements and have learned new ways to store and deliver energy.
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Lithium makes a fine battery because it's a scarily reactive metal. Pure lithium ignites on contact if it touches water - a flake of it would sizzle and fry on the water-rich cells of your skin.
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