- electropositive metal
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электроположительный металл
Англо-русский словарь технических терминов. 2005.
electropositive metal
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Electropositive shark repellent — Electropositive metals (EPMs) are a new class of shark repellent materials that produce a measurable voltage when immersed in an electrolyte. The voltages produced are as high as 1.75 eVDC in seawater. It is hypothesized that this voltage… … Wikipedia
metal — the electropositive elements and alloys based on these elements; the electron band structure of metals is characterized by a partially filled valence band. alkali metal alkaline earth metal clad metal hard metal noble metal … Mechanics glossary
metal — One of the electropositive elements, either amphoteric or basic, usually characterized by properties such as luster, malleability, ductility, the ability to conduct electricity, and the tendency to lose rather than gain electrons in chemicals. [L … Medical dictionary
alkaline-earth metal — /al keuh luyn errth , lin /, Chem. any of the group of bivalent metals including barium, radium, strontium, calcium, and, usually, magnesium, the hydroxides of which are alkalis but less soluble than those of the alkali metals. [1900 05] * * * ▪… … Universalium
alkali metal — Chem. any of the group of univalent metals including potassium, sodium, lithium, rubidium, cesium, and francium, whose hydroxides are alkalis. [1880 85] * * * Any of the six chemical elements in the leftmost group of the periodic table (lithium,… … Universalium
transition metal — noun Etymology: from their being transitional between the more highly and the less highly electropositive elements Date: 1940 any of various metallic elements (as chromium, iron, and nickel) that have valence electrons in two shells instead of… … New Collegiate Dictionary
Metalloid — 13 14 15 16 17 2 B Boron … Wikipedia
Organolithium reagent — An organolithium reagent is an organometallic compound with a direct bond between a carbon and a lithium atom. As the electropositive nature of lithium puts most of the charge density of the bond on the carbon atom, effectively creating a… … Wikipedia
Hydride — In chemistry, a hydride is the anion of hydrogen, H−, or, more commonly, a compound in which one or more hydrogen centres have nucleophilic, reducing, or basic properties. In compounds that are regarded as hydrides, hydrogen is bonded to a more… … Wikipedia
Sharkdefense — is an internationally recognized and award winning research organization and think tank focused on shark bycatch reduction. Its core research involves chemical and electrochemical shark repellent technologies. SharkDefense s repellent experiments … Wikipedia
Nuclear reprocessing — technology was developed to chemically separate and recover fissionable plutonium from irradiated nuclear fuel.[1] Reprocessing serves multiple purposes, whose relative importance has changed over time. Originally reprocessing was used solely to… … Wikipedia
