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...n the [[chemical reaction]] taking place in it. It is named after the late chemical engineering professor [[Octave Levenspiel]]. ...ref>{{cite book |last= Fogler|first= H. Scott|date=2006 |title=Elements of Chemical Reaction Engineering |url= https://books.google.com/books?isbn=0130473944 | ...

{{Short description|On transmutation of elements during radioactive decay}} ...lschaft]], Nr. 46, 1913, pp. 422–439</ref><ref>Frederick Soddy, "The Radio Elements and the Periodic Law", Chem. News, Nr. 107, 1913, pp. 97–99</ref> ...

....1107/S0365110X49001016|title=Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types|journal=Acta Crystal | title = The Chemistry of the Actinide and Transactinide Elements |doi=10.1007/1-4020-3598-5_9 ...

....1107/S0365110X49001016|title=Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types|journal=Acta Crystal '''Uranium trifluoride''' is an [[inorganic]] [[chemical compound]] with the chemical formula [[Uranium|U]][[Fluorine|F]]₃. ...

....1107/S0365110X49001016|title=Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types|journal=Acta Crystal | title = The Chemistry of the Actinide and Transactinide Elements |doi=10.1007/1-4020-3598-5_9 ...

{{Short description|Concentration of chemical orbitals on adjacent atoms}} ...form stronger C–H bonds.<ref>Pauling, Linus. (1960). ''The Nature Of The Chemical Bond''. Cornell University Press.</ref> ...

..., [[argon]], [[krypton]], [[xenon]], and [[radon]]), though all [[chemical elements]] will be monatomic in the gas phase at sufficiently high temperature (or v ...While these elements have been described historically as completely inert, chemical compounds have been synthesized with all but neon and helium.<ref>{{Cite jo ...

....1107/S0365110X49001016|title=Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types|journal=Acta Crystal ...ium trifluoride''' is a salt of [[promethium]] and [[fluorine]] with the [[chemical formula|formula]] PmF₃. ...

...s statements whether and how much volume elements or substances within a [[chemical reactor]] mix due to the prevalent currents. It is defined as the ratio of [[Category:Chemical engineering]] ...

....1107/S0365110X49001016|title=Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types|journal=Acta Crystal |title = The Chemistry of the Actinide and Transactinide Elements |doi=10.1007/1-4020-3598-5_9 ...

{{Short description|Chemical compound made of four elements}} ...''quaternary compound''' is a compound consisting of exactly four chemical elements. ...

...irst3=M. a. A. |title=726. The polonium nitrates |journal=[[Journal of the Chemical Society]] |date=1 January 1958 |pages=3633–3636 |doi=10.1039/JR9580003633 | .... |last2=Pesterfield |first2=Lester L. |title=The Aqueous Chemistry of the Elements |date=14 January 2010 |publisher=[[Oxford University Press]] |isbn=978-0-19 ...

...molecule]]s composed of three [[atom]]s, of either the same or different [[chemical element]]s. Examples include [[water|H₂O]], [[carbon dioxide|CO< ...he molecule, ''m_A'' and ''m_B'' are the masses of the elements A and B, ''k''₁ and ''k''₂ are the spring constants o ...

{{Short description|Physico-chemical characterization method based on the ideal gas equation}} ...is now named. Dumas used the method to determine the vapour densities of elements ([[Mercury (element)|mercury]], [[phosphorus]], [[sulfur]]) and inorganic c ...

...shows the iron abundance on the x-axis and the abundance of alpha process elements on the y-axis. ...e iron abundance, [Fe/H], on the x-axis and the abundance of alpha process elements, [α/Fe], on the y-axis. The data from [[bibcode:1962ApJS....6..407W|Wallers ...

An '''orthoferrite''' is any of a class of [[chemical compound]]s with the formula RFeO{{sub|3}}, where R is one or more [[rare-e ...rite fine powders prepared by different chemical routes|journal=Journal of Chemical Sciences|date=2003|volume=115|issue=5–6|pages=519–524|doi=10.1007/BF0270824 ...

...a complex structure, but can be synthesized from direct combination of the elements:<ref name=":0">{{cite journal |author1=Schwarz, D. E. |author2=Frenkel, A. ...yants, I.&nbsp;L.]] ''et al'', eds. (1995). ''Химическая энциклопедия'' [''Chemical encyclopedia''] {{in lang|ru}}. Moscow: Soviet Encyclopedias. {{ISBN|978- ...

...-3|title=Cerium(IV) Fluoride|first=American|last=Elements|website=American Elements}}</ref> ...丛书 第七卷 钪 稀土元素 (Series of Inorganic Chemistry. Vol. 7. Scandium. Rare Earth Elements.). ''Science Press''. pp 244-246. 1. Compounds of Halogens. (in Chinese)</r ...

For [[chemical reaction]]s, the '''iron oxide cycle''' (Fe₃O₄/FeO) i ...pacity, non-toxicity of the elements used and abundance of the constituent elements. ...

...e [[nuclear size|size]] of the [[atomic nucleus]], and is related to the [[chemical bond]]s which bind atoms together.<ref>{{Cite book ...0.246\ \text{nm}</math>. Although both bonds are between the same pair of elements they can have different bond lengths.<ref>{{cite book |author=Brown |author ...