Metal
hideIn chemistry, a metal (Greek: Metallo, Μέταλλο) is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions (cations); those ions are surrounded by delocalized electrons, which are responsible for the conductivity. The thus produced solid is held by electrostatic interactions between the ions and the electron cloud, which are called metallic bonds.
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News tagged with metal
Modern tests demonstrate soundness of old iron bridge
Dec 21, 2009 |
4.4 / 5 (7) |
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An unusual bowstring truss iron bridge that carried traffic across Roaring Run in Bedford County, Va. for almost 100 years is now a picturesque footbridge at the I-81 Ironto, Va. rest stop. Built in 1878, ...
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Scientists improve chip memory by stacking cells
13 hours ago |
4.7 / 5 (7) |
3
(PhysOrg.com) -- Scientists at Arizona State University have developed an elegant method for significantly improving the memory capacity of electronic chips.
Intel Announces Next-Generation Atom Platform (w/ Video)
16 hours ago |
5 / 5 (1) |
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Intel Corporation announced new Intel Atom processors today that feature integrated graphics built directly into the CPU, enabling improved performance and smaller, more energy-efficient designs in a new generation ...
Silicon technology offers extended X-ray vision of high-energy cosmos
Space & Earth / Space Exploration
18 hours ago |
5 / 5 (2) |
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(PhysOrg.com) -- As elements of the integrated circuits running our computers, phones and electronics, silicon wafers are everywhere. An ESA-led effort is establishing an out-of-this-world use for these ...
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