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New, extremely reactive chemical discovered in the atmosphereMillions of tons of a type of extremely reactive chemical can form in the atmosphere each year, with implications for health and the global climate.
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Why does wood catch fire, but metal doesn't?Burning is the release of energy, and some materials like metals, can absorb energy better than others, such as wood.
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Scientists create weird pumpkin-shaped nucleus that vanishes in nanosecondsA newly created isotope of the silvery metal lutetium has a strange squashed nucleus and a half-life of just a few hundred nanoseconds.
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Copper: Facts about the reddish metal that has been used by humans for 8,000 yearsReference Here's a look at the element copper, including its atomic structure, history and uses today.
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Uranium: Facts about the radioactive element that powers nuclear reactors and bombsReference Uranium is a naturally radioactive element. It powers nuclear reactors and atomic bombs.
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Gold: Facts, history and uses of the most malleable chemical elementHere's a look at the chemical element gold, including its properties, atomic structure and history.
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Scientists create never-before-seen isotope of magnesiumScientists have just created the world's lightest form of magnesium — a never-before-seen isotope with just six neutrons in its atomic nuclei.
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What is an atom? Facts about the building blocks of the universeReference Atoms are the building blocks of matter and were created after the Big Bang. They are the smallest unit of an element that still retains its properties.
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How the Periodic Table of the Elements is arrangedReference The elements in the periodic table are arranged according to the transition from metal to nonmetal elements.
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