- thorium series
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Chem.the radioactive series that starts with thorium and ends with a stable isotope of lead of mass number 208.
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set of unstable heavy nuclei comprising one of the four radioactive series (q.v.).* * *
Universalium. 2010.
thorium series
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thorium series — torio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³²₉₀Th iki patvaraus ²⁰⁸₈₂Pb. atitikmenys: angl. thorium family; thorium radioactive family; thorium radioactive series; thorium series; 4n series… … Chemijos terminų aiškinamasis žodynas
thorium series — noun : a radioactive series beginning with thorium of mass number 232 and ending with thorium D which is the nonradioactive isotope of lead of mass number 208: thorium, at. no. 90 → mesothorium 1, at. no. 88 (syn. radium 228) → mesothorium 2, at … Useful english dictionary
Principal cosmogenic and uranium-thorium series radioisotopes — ▪ Table Principal cosmogenic and uranium thorium series radioisotopes radioisotope half life in years principal uses Cosmogenic isotope beryllium 10 1.5(106) dating marine sediment, manganese nodules, glacial ice, quartz in rock exposures,… … Universalium
thorium radioactive series — torio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³²₉₀Th iki patvaraus ²⁰⁸₈₂Pb. atitikmenys: angl. thorium family; thorium radioactive family; thorium radioactive series; thorium series; 4n series… … Chemijos terminų aiškinamasis žodynas
thorium family — torio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³²₉₀Th iki patvaraus ²⁰⁸₈₂Pb. atitikmenys: angl. thorium family; thorium radioactive family; thorium radioactive series; thorium series; 4n series… … Chemijos terminų aiškinamasis žodynas
thorium radioactive family — torio radioaktyvioji šeima statusas T sritis chemija apibrėžtis Radioaktyviųjų skilimų seka nuo ²³²₉₀Th iki patvaraus ²⁰⁸₈₂Pb. atitikmenys: angl. thorium family; thorium radioactive family; thorium radioactive series; thorium series; 4n series… … Chemijos terminų aiškinamasis žodynas
Thorium — (pronEng|ˈθɔːriəm) is a chemical element with the symbol Th and atomic number 90. As a naturally occurring, slightly radioactive metal, it has been considered as an alternative nuclear fuel to uranium.CharacteristicsWhen pure, thorium is a… … Wikipedia
THORIUM — En 1828, Jöns Jacob Berzelius découvrit un nouveau métal qu’il baptisa thorium en l’honneur de Thor, dieu de la mythologie scandinave. Bien qu’il soit relativement rare, cet élément a été utilisé depuis longtemps dans l’industrie, principalement… … Encyclopédie Universelle
thorium — thoric /thawr ik, thor /, adj. /thawr ee euhm, thohr /, n. Chem. a grayish white, lustrous, somewhat ductile and malleable, radioactive metallic element present in monazite: used as a source of nuclear energy, as a coating on sun lamp and vacuum… … Universalium
thorium processing — Introduction preparation of the ore for use in various products. Thorium (Th) is a dense (11.7 grams per cubic centimetre), silvery metal that is softer than steel. It has a high melting temperature of approximately 1,750° C (3,180°… … Universalium
