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
System developed to detect plastic anti-personnel mines
10 hours ago |
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A team of European researchers has devised a method for locating plastic anti-personnel mines, which are manufactured to avoid detection by metal detectors. The technique involves analysing the temperature ...
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Tiny nano-electromagnets turn a cloak of invisibility into a possibility
6 hours ago |
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A team of researchers at the FOM institute AMOLF (The Netherlands) has succeeded for the first time in powering an energy transfer between nano-electromagnets with the magnetic field of light.
Feds mull regulating drugs in water
9 hours ago |
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(AP) -- Federal regulators under President Barack Obama have sharply shifted course on long-standing policy toward pharmaceutical residues in the nation's drinking water, taking a critical first step toward regulating some ...
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