An difríocht idir athruithe ar: "Fréamh (ceimic)"
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m Róbat: Athruithe cosmaideacha |
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[[ar:جذور حرة]] |
[[ar:جذور حرة]] |
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[[ca:Radical químic]] |
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[[cs:Radikál]] |
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[[da:Radikal (kemi)]] |
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[[de:Radikale (Chemie)]] |
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[[el:Χημική ρίζα]] |
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[[en:Radical (chemistry)]] |
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[[es:Radical (química)]] |
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[[eu:Erradikal aske]] |
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[[fa:رادیکال آزاد]] |
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[[fi:Radikaali (kemia)]] |
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[[fr:Radical (chimie)]] |
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[[he:רדיקלים חופשיים]] |
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[[hu:Szabad gyök]] |
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[[id:Radikal bebas]] |
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[[is:Radikalar]] |
[[is:Radikalar]] |
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[[it:Radicale libero]] |
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[[ja:ラジカル (化学)]] |
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[[lt:Radikalas (chemija)]] |
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[[mk:Радикал (хемија)]] |
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[[nl:Radicaal (scheikunde)]] |
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[[nn:Fritt radikal]] |
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[[pl:Rodniki]] |
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[[pt:Radical (química)]] |
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[[ru:Свободные радикалы]] |
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[[simple:Free radical]] |
[[simple:Free radical]] |
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[[sk:Radikál (chémia)]] |
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[[sl:Radikal (kemija)]] |
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[[su:Radikal (kimia)]] |
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[[sv:Fri radikal]] |
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[[th:อนุมูลอิสระ]] |
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[[uk:Радикал (хімія)]] |
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[[zh:自由基]] |
Leagan ó 15:40, 15 Lúnasa 2013
Sa cheimic, tugtar fréamh, saorfhréamh nó fréamhaí ar mhóilín ina bhfuil leictreon corr ar sceall oscailte, is é sin, fithiseán nach bhfuil ach aon leictreon amháin air, seachas leictreondís. Bíonn na fréamha iontach fonnmhar chun imoibriúcháin, agus is minic nach mbíonn siad fadsaolach. Creidtear gur ábhar ailse (carcanaigin) iad na saorfhréamha, toisc go mbíonn siad chomh himoibríoch sin. Ón taobh eile de, áfach, bíonn siad riachtanach le haghaidh a lán próiseas bithcheimiceach.
Samplaí de shaorfhréamha iad aonocsaíd nítrigine NO, dé-ocsaíd nítrigine NO2, agus dé-ocsaíd chlóirín ClO2.
Is síol é an t-alt seo. Cuir leis, chun cuidiú leis an Vicipéid. Má tá alt níos forbartha le fáil i dteanga eile, is féidir leat aistriúchán Gaeilge a dhéanamh. |