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Cesiom

Ensampel a Elven gymyk, lithophile Edit this on Wikidata
Klass alkan lisliwennek, alkan, stokk-s Edit this on Wikidata
Furvell gymyk Cs edit this on wikidata
Dydhyas diskudhans 1860 Edit this on Wikidata
Niver atomek 55 Edit this on Wikidata
Aray an elektrons [Xe] 6s¹ Edit this on Wikidata
Elektronegedhegedh 0.79 Edit this on Wikidata
Studh oksidyansEdit this on Wikidata
Rann a bagas 1, period 6, alkan lisliwennek Edit this on Wikidata
Commons page Restrennow kelmys war Gemmyn Wikimedia

Elven gymyk yw cesiom, niver 55 y'n Vosen Beriodek. Y furvell gymyk yw Cs. An hanow a dheu dhyworth an ger Latin caesius, ow styrya glaswynn, drefen liw y flamm. Nyns yw cesiom dhe les an korf denel.

Diskudhys veu cesiom yn 1860 yn Heidelberg yn Almayn. Gwrys veu an ober gans Robert Bunsen (1811-1899), a dhevisas an losker Bunsen, ha Gustav Kirchoff (1824-1887), gans bryjyon 30,000 liter a dhowr moon.

Askorrys yw 20 tunnas a cesiom yn unnik pub bledhen, gan an moyha rann ow tos dhyworth Kanada. Usys yw avel katalydh, dhe wul gweder optykal, ha dhe wul klockow atomek. Droglammow nuklerek hag arvow nuklerek re livras isotopow radyoweythresek dhe'n ayrgylgh. An cesiom-137 livrys gans droglamm Chernobyl eth dres [Europa]] West oll, owth effeythi bargennyow tir deves yn Alban ha Kembra.

Poos atomek cesiom yw 132.91 ha'y boynt teudhi yw 28°C ha'y boynt bryjyon yw 679°C. Y dhosedh yw 1.9kg an liter. Alkan medhel, golow, liw owr yw. Cesiom a dhasober gans dowr yn fest garow. Usys yw 'herdhyoryon' (thrusters) cesiom dhe lywya lorellow.

Gwydhyow a effeythyow droglamm Chernobyl dres Europa https://www.youtube.com/watch?v=mqu_l29WioM

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Cesiom
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