{"id":17866,"date":"2020-06-22T19:45:46","date_gmt":"2020-06-22T19:45:46","guid":{"rendered":"https:\/\/www.radiation-dosimetry.org\/o-que-e-o-isotopo-principal-de-radonio-definicao\/"},"modified":"2020-07-22T11:13:52","modified_gmt":"2020-07-22T11:13:52","slug":"o-que-e-o-isotopo-principal-de-radonio-definicao","status":"publish","type":"post","link":"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/","title":{"rendered":"O que \u00e9 o is\u00f3topo principal de rad\u00f4nio &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-u-clearfix su-u-trim\">Is\u00f3topos de Radon.\u00a0O is\u00f3topo do rad\u00f4nio-222 \u00e9 um produto natural de decomposi\u00e7\u00e3o do ur\u00e2nio-238.\u00a0O is\u00f3topo do rad\u00f4nio-220, comumente chamado de t\u00f3rio, \u00e9 um produto natural de decomposi\u00e7\u00e3o do t\u00f3rio-232.\u00a0Dosimetria de Radia\u00e7\u00e3o<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<p><strong>O r\u00e1don<\/strong>\u00a0\u00e9 um\u00a0<strong>g\u00e1s nobre<\/strong>\u00a0incolor, inodoro e ins\u00edpido\u00a0, que ocorre naturalmente como produto decadente do r\u00e1dio.\u00a0Todos os is\u00f3topos de rad\u00f4nio s\u00e3o\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/\">radioativos<\/a>\u00a0, mas os dois is\u00f3topos de\u00a0<strong>rad\u00f4nio, rad\u00f4nio-222<\/strong>\u00a0e\u00a0<strong>rad\u00e3o-220,<\/strong>\u00a0s\u00e3o muito importantes do ponto de vista da prote\u00e7\u00e3o contra radia\u00e7\u00e3o.<\/p>\n<h2>Is\u00f3topos de Radon<\/h2>\n<ul>\n<li>\n<figure id=\"attachment_25771\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-25771\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron.png\"><img loading=\"lazy\" class=\"size-medium wp-image-25771 lazy-loaded\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron-300x300.png\" alt=\"r\u00e1don e toro\" width=\"300\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron-300x300.png\" \/><\/a><figcaption id=\"caption-attachment-25771\" class=\"wp-caption-text\">Fonte: JANIS (Software de Informa\u00e7\u00e3o de Dados Nucleares baseado em Java);\u00a0ENDF \/ B-VII.1<\/figcaption><\/figure>\n<p><strong>Rad\u00e3o-222<\/strong>\u00a0.\u00a0O is\u00f3topo de rad\u00f4nio-222 \u00e9 um produto natural de decomposi\u00e7\u00e3o do is\u00f3topo de ur\u00e2nio mais est\u00e1vel (ur\u00e2nio-238), portanto \u00e9 um membro da\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/uranium-series\/\">s\u00e9rie<\/a>\u00a0de\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/uranium-series\/\">ur\u00e2nio<\/a>\u00a0.\u00a0A meia-vida do rad\u00f4nio-222 \u00e9 de 3,8 dias e decai por\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/alpha-decay-alpha-radioactivity\/\">decaimento alfa<\/a>\u00a0para o pol\u00f4nio-218.<\/li>\n<li><strong>Rad\u00e3o-220<\/strong>\u00a0.\u00a0O is\u00f3topo do rad\u00f4nio-220, geralmente chamado de\u00a0<strong>t\u00f3rio<\/strong>\u00a0, \u00e9 um produto natural de decomposi\u00e7\u00e3o do is\u00f3topo de t\u00f3rio mais est\u00e1vel (\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-fuel\/thorium\/\">t\u00f3rio-232<\/a>\u00a0), portanto, \u00e9 um membro da\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/thorium-series\/\">s\u00e9rie<\/a>\u00a0de\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/radioactive-decay-chain\/radioactive-series-radioactive-cascade\/thorium-series\/\">t\u00f3rio<\/a>\u00a0.\u00a0A meia-vida do rad\u00f4nio-220 \u00e9 de 55 segundos e decai por\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/alpha-decay-alpha-radioactivity\/\">decaimento alfa<\/a>\u00a0at\u00e9 o pol\u00f4nio-216.<\/li>\n<\/ul>\n<p>\u00c9 importante notar que o r\u00e1don \u00e9 um\u00a0<strong>g\u00e1s nobre<\/strong>\u00a0, enquanto todos os seus produtos de decomposi\u00e7\u00e3o s\u00e3o\u00a0<strong>metais<\/strong>\u00a0.\u00a0O principal mecanismo para a entrada de r\u00e1don na atmosfera \u00e9 a\u00a0<strong>difus\u00e3o atrav\u00e9s do solo<\/strong>\u00a0.\u00a0Como g\u00e1s, o r\u00e1don difunde-se atrav\u00e9s das rochas e do solo.\u00a0Quando o r\u00e1don se desintegra, os is\u00f3topos met\u00e1licos filhas s\u00e3o \u00edons que ser\u00e3o ligados a outras mol\u00e9culas como a \u00e1gua e as part\u00edculas de aerossol no ar.\u00a0Portanto, todas as discuss\u00f5es sobre as concentra\u00e7\u00f5es de rad\u00f4nio no ambiente se referem ao\u00a0<strong>rad\u00f4nio-222<\/strong>\u00a0.\u00a0Enquanto a taxa m\u00e9dia de produ\u00e7\u00e3o de\u00a0<strong>rad\u00f4nio-220<\/strong>(thoron) \u00e9 quase a mesma do rad\u00f4nio-222, a quantidade de rad\u00f4nio-220 no ambiente \u00e9 muito menor que a do rad\u00f4nio-222 devido \u00e0 meia-vida significativamente mais curta (tem menos tempo para se difundir) do rad\u00f4nio. 222 (55 segundos, versus 3,8 dias, respectivamente).\u00a0Simplesmente o rad\u00f4nio-220 tem menor chance de escapar da rocha.<\/p>\n<h3><strong>Radon-222<\/strong><\/h3>\n<figure id=\"attachment_25768\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-25768\"><a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-source-environment.png\"><img loading=\"lazy\" class=\"size-medium wp-image-25768 lazy-loaded\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-source-environment-300x170.png\" alt=\"r\u00e1don - fonte - ambiente\" width=\"300\" height=\"170\" data-lazy-type=\"image\" data-src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-source-environment-300x170.png\" \/><\/a><figcaption id=\"caption-attachment-25768\" class=\"wp-caption-text\">S\u00e9rie de ur\u00e2nio &#8211; fonte de rad\u00f4nio-222.<\/figcaption><\/figure>\n<p><strong>O rad\u00f4nio-222<\/strong>\u00a0\u00e9 um g\u00e1s produzido pela decomposi\u00e7\u00e3o do r\u00e1dio-226.\u00a0Ambos fazem parte da s\u00e9rie natural de ur\u00e2nio.\u00a0Como o ur\u00e2nio \u00e9 encontrado no solo em todo o mundo em concentra\u00e7\u00f5es variadas, tamb\u00e9m a dose do r\u00e1don gasoso est\u00e1 variando em todo o mundo.\u00a0<strong>O r\u00e1don 222<\/strong>\u00a0\u00e9 o is\u00f3topo mais importante e mais est\u00e1vel do r\u00e1don.\u00a0Sua meia-vida \u00e9 de apenas\u00a0<strong>3,8 dias<\/strong>\u00a0, tornando o r\u00e1don um dos elementos mais raros, pois decai rapidamente.\u00a0Uma fonte importante de radia\u00e7\u00e3o natural \u00e9 o g\u00e1s rad\u00f4nio, que escorre continuamente da rocha, mas pode, devido \u00e0 sua alta densidade, acumular-se em casas com pouca ventila\u00e7\u00e3o.\u00a0O fato de\u00a0<strong>rad\u00f4nio \u00e9 g\u00e1s<\/strong>desempenha um papel crucial na dissemina\u00e7\u00e3o de todos os seus n\u00facleos-filha.\u00a0O Simply Radon \u00e9 um meio de transporte da rocha para a atmosfera (ou dentro de edif\u00edcios) por seus produtos de deteriora\u00e7\u00e3o de curta dura\u00e7\u00e3o (\u00a0<strong>Pb-210<\/strong>\u00a0e\u00a0<strong>Po-210<\/strong>\u00a0), que apresentam muito mais riscos \u00e0 sa\u00fade.<\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-arrow\" data-anchor=\"References\">\n<div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><\/div>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Este artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. Obrigado.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Is\u00f3topos de Radon.\u00a0O is\u00f3topo do rad\u00f4nio-222 \u00e9 um produto natural de decomposi\u00e7\u00e3o do ur\u00e2nio-238.\u00a0O is\u00f3topo do rad\u00f4nio-220, comumente chamado de t\u00f3rio, \u00e9 um produto natural de decomposi\u00e7\u00e3o do t\u00f3rio-232.\u00a0Dosimetria de Radia\u00e7\u00e3o O r\u00e1don\u00a0\u00e9 um\u00a0g\u00e1s nobre\u00a0incolor, inodoro e ins\u00edpido\u00a0, que ocorre naturalmente como produto decadente do r\u00e1dio.\u00a0Todos os is\u00f3topos de rad\u00f4nio s\u00e3o\u00a0radioativos\u00a0, mas os dois is\u00f3topos &#8230; <a title=\"O que \u00e9 o is\u00f3topo principal de rad\u00f4nio &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/\" aria-label=\"More on O que \u00e9 o is\u00f3topo principal de rad\u00f4nio &#8211; Defini\u00e7\u00e3o\">Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[51],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 o is\u00f3topo principal de rad\u00f4nio - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Is\u00f3topos de Radon. O is\u00f3topo do rad\u00f4nio-222 \u00e9 um produto natural de decomposi\u00e7\u00e3o do ur\u00e2nio-238. O is\u00f3topo do rad\u00f4nio-220, comumente chamado de t\u00f3rio, \u00e9 um produto natural de decomposi\u00e7\u00e3o do t\u00f3rio-232. Dosimetria de Radia\u00e7\u00e3o\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O que \u00e9 o is\u00f3topo principal de rad\u00f4nio - Defini\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"Is\u00f3topos de Radon. O is\u00f3topo do rad\u00f4nio-222 \u00e9 um produto natural de decomposi\u00e7\u00e3o do ur\u00e2nio-238. O is\u00f3topo do rad\u00f4nio-220, comumente chamado de t\u00f3rio, \u00e9 um produto natural de decomposi\u00e7\u00e3o do t\u00f3rio-232. Dosimetria de Radia\u00e7\u00e3o\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/\" \/>\n<meta property=\"og:site_name\" content=\"Radiation Dosimetry\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-22T19:45:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-07-22T11:13:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron-300x300.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"3 minutos\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"http:\/\/www.radiation-dosimetry.org\/#website\",\"url\":\"http:\/\/www.radiation-dosimetry.org\/\",\"name\":\"Radiation Dosimetry\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"http:\/\/www.radiation-dosimetry.org\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/radon-and-thoron-300x300.png\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/#webpage\",\"url\":\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/\",\"name\":\"O que \\u00e9 o is\\u00f3topo principal de rad\\u00f4nio - Defini\\u00e7\\u00e3o\",\"isPartOf\":{\"@id\":\"http:\/\/www.radiation-dosimetry.org\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/#primaryimage\"},\"datePublished\":\"2020-06-22T19:45:46+00:00\",\"dateModified\":\"2020-07-22T11:13:52+00:00\",\"author\":{\"@id\":\"http:\/\/www.radiation-dosimetry.org\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Is\\u00f3topos de Radon. O is\\u00f3topo do rad\\u00f4nio-222 \\u00e9 um produto natural de decomposi\\u00e7\\u00e3o do ur\\u00e2nio-238. O is\\u00f3topo do rad\\u00f4nio-220, comumente chamado de t\\u00f3rio, \\u00e9 um produto natural de decomposi\\u00e7\\u00e3o do t\\u00f3rio-232. Dosimetria de Radia\\u00e7\\u00e3o\",\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.radiation-dosimetry.org\/pt-br\/o-que-e-o-isotopo-principal-de-radonio-definicao\/\"]}]},{\"@type\":\"Person\",\"@id\":\"http:\/\/www.radiation-dosimetry.org\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/posts\/17866"}],"collection":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/comments?post=17866"}],"version-history":[{"count":0,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/posts\/17866\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/media?parent=17866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/categories?post=17866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/pt-br\/wp-json\/wp\/v2\/tags?post=17866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}