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This article is written in British English with Oxford and IUPAC spelling (colour, realize, organization, analyse; note that -ize is used instead of -ise; aluminium, sulfur and caesium) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide and chemistry naming conventions, this should not be changed without broad consensus. |
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Caesium is part of the Alkali metals series, a good topic. This is identified as among the best series of articles produced by the Wikipedia community. If you can update or improve it, please do so. | ||||||||||||||||||||||
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I have found an error in this page and wish to correct it Quantum squid88 (talk) 19:39, 6 March 2020 (UTC)
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Cesium is absorbed by animal and plant cells in a competitive way with potassium, but cesium has no known function; however, at high concentrations, it can cause toxicity in plants, inhibiting their growth. Indeed, mammalian organisms, during evolution, began to distinguish the useless (non-radioactive) cesium from potassium, which is essential in the Na + / K + pump of animal cell membranes. This is clearly visible in the poor absorption and selectivity for cesium of the liver and fetuses, in the autoradiographs of Nelson et al. (1961) [1]. The human organism in fact expels cesium through three emunctories: the kidney, and also through the salivary glands and, greatly, through the exocrine pancreas, that concentrate, filter it and eliminate it with secrete saliva and pancreatic juice in the intestine, as reported by Venturi [2] In fact, "Prussian Blue" (ferric ferrocyanide), ingested orally, is able in the intestine to chelate cesium, preventing its reabsorption, and to eliminate it in the faeces, and, in this way, purify the human organism by about half of cesium in 30-70 days.
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What's the source of File:AirDoseChernobylVector.svg? ("A graph showing the relative contributions made by different substances to the levels of radiation in Prypiat after the Chernobyl nuclear disaster.") There must be one but I couldn't find it after a (rather quick) search. A455bcd9 (talk) 10:39, 11 December 2022 (UTC)
Here are statements that I deleted today. 1) "The golden colour of caesium comes from the decreasing frequency of light required to excite electrons of the alkali metals as the group is descended."
IMHO, this sentence says nothing, and isn't even decent English.
2) "For lithium through rubidium this frequency [which frequency?] is in the ultraviolet, but for caesium it enters the blue–violet end of the spectrum; in other words, the plasmonic frequency of the alkali metals becomes lower from lithium to caesium. Thus caesium transmits and partially absorbs violet light preferentially while other colours (having lower frequency) are reflected; hence it appears yellowish."
So we learn that if a material absorbs at the "blue–violet end of the spectrum," it is yellow. --Smokefoot (talk) 23:07, 18 March 2023 (UTC)
The redirect Сaesium has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2023 October 18 § Сaesium until a consensus is reached. -- Tamzin[cetacean needed] (she|they|xe) 00:21, 18 October 2023 (UTC)