{"id":15795,"date":"2020-01-19T23:50:55","date_gmt":"2020-01-19T23:50:55","guid":{"rendered":"https:\/\/www.radiation-dosimetry.org\/quelle-est-la-principale-propriete-du-radon-caracteristiques-du-radon-definition\/"},"modified":"2020-07-15T11:08:12","modified_gmt":"2020-07-15T11:08:12","slug":"quelle-est-la-principale-propriete-du-radon-caracteristiques-du-radon-definition","status":"publish","type":"post","link":"https:\/\/www.radiation-dosimetry.org\/fr\/quelle-est-la-principale-propriete-du-radon-caracteristiques-du-radon-definition\/","title":{"rendered":"Quelle est la principale propri\u00e9t\u00e9 du radon &#8211; Caract\u00e9ristiques du radon &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-u-clearfix su-u-trim\">Propri\u00e9t\u00e9s du radon &#8211; Caract\u00e9ristiques du radon.\u00a0Le radon est un gaz noble incolore, inodore et insipide, qui se produit naturellement comme produit de d\u00e9sint\u00e9gration du radium.\u00a0Le symbole chimique du radon est Rn.\u00a0Dosim\u00e9trie des rayonnements<\/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>Le radon<\/strong>\u00a0est un gaz\u00a0<strong>noble<\/strong>\u00a0incolore, inodore et insipide\u00a0, qui se produit naturellement comme produit de d\u00e9sint\u00e9gration du radium.\u00a0<strong>Le radon<\/strong>\u00a0est un \u00e9l\u00e9ment chimique de\u00a0<a title=\"Num\u00e9ro atomique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/atomic-nuclear-structure\/atomic-number-proton-number\/\">num\u00e9ro atomique\u00a0<\/a><strong>86,<\/strong>\u00a0ce qui signifie qu&rsquo;il y a 86 protons et 86 \u00e9lectrons dans la structure atomique.\u00a0Le\u00a0<strong>symbole chimique<\/strong>\u00a0du radon est\u00a0<strong>Rn<\/strong>\u00a0.\u00a0Tous les isotopes du radon sont\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/radioactive-decay\/\">radioactifs<\/a>\u00a0, mais les deux isotopes du\u00a0<strong>radon radon-222<\/strong>\u00a0et\u00a0<strong>radon-220<\/strong>\u00a0sont tr\u00e8s importants du point de vue de la radioprotection.<\/p>\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=\"radon et thoron\" 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\">Source: JANIS (Java-based Nuclear Data Information Software);\u00a0ENDF \/ B-VII.1<\/figcaption><\/figure>\n<p><strong>Radon-222<\/strong>\u00a0.\u00a0L&rsquo;isotope du radon 222 est un produit de d\u00e9sint\u00e9gration naturel de l&rsquo;isotope de l&rsquo;uranium le plus stable (l&rsquo;uranium 238), il fait donc partie de la\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 l&rsquo;\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\/\">uranium<\/a>\u00a0.<\/li>\n<li><strong>Radon-220<\/strong>\u00a0.\u00a0L&rsquo;isotope du radon-220, commun\u00e9ment appel\u00e9\u00a0<strong>thoron<\/strong>\u00a0, est un produit de d\u00e9sint\u00e9gration naturelle de l&rsquo;isotope du thorium le plus stable (\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-fuel\/thorium\/\">thorium-232<\/a>\u00a0), il fait donc partie de la\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>\u00a0du\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\/\">thorium<\/a>\u00a0.<\/li>\n<\/ul>\n<p>Il est important de noter que le radon est un\u00a0<strong>gaz noble<\/strong>\u00a0, alors que tous ses produits de d\u00e9sint\u00e9gration sont des\u00a0<strong>m\u00e9taux<\/strong>\u00a0.\u00a0Le principal m\u00e9canisme d&rsquo;entr\u00e9e du radon dans l&rsquo;atmosph\u00e8re est la\u00a0<strong>diffusion \u00e0 travers le sol<\/strong>\u00a0.\u00a0En tant que gaz, le radon se diffuse \u00e0 travers les roches et le sol.\u00a0Lorsque le radon se d\u00e9sint\u00e8gre, les isotopes m\u00e9talliques filles sont des ions qui seront attach\u00e9s \u00e0 d&rsquo;autres mol\u00e9cules comme l&rsquo;eau et aux particules d&rsquo;a\u00e9rosol dans l&rsquo;air.\u00a0Par cons\u00e9quent, toutes les discussions sur les concentrations de radon dans l&rsquo;environnement se r\u00e9f\u00e8rent au\u00a0<strong>radon-222<\/strong>.\u00a0Alors que le taux de production moyen de radon-220 (thoron) est \u00e0 peu pr\u00e8s le m\u00eame que celui du radon-222, la quantit\u00e9 de radon-220 dans l&rsquo;environnement est bien inf\u00e9rieure \u00e0 celle du radon-222 en raison d&rsquo;une demi-vie beaucoup plus courte ( il a moins de temps pour diffuser) du radon-222 (55 secondes, contre 3,8 jours respectivement).\u00a0Le radon-220 a tout simplement moins de chances de s&rsquo;\u00e9chapper du substratum rocheux.<\/p>\n<p>Voir aussi:\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/radiation-protection\/sources-of-radiation\/radon-health-effects-health-risks\/\">Radon &#8211; Effets sur la sant\u00e9<\/a><\/p>\n<\/div>\n<\/div>\n<h2><span>Radon &#8211; Propri\u00e9t\u00e9s<\/span><\/h2>\n<table width=\"100%\">\n<thead>\n<tr>\n<th align=\"left\"><span>\u00c9l\u00e9ment<\/span><\/th>\n<th align=\"left\"><span>Radon<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span>Num\u00e9ro atomique<\/span><\/td>\n<td><span>86<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>symbole<\/span><\/td>\n<td><span>Rn<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Cat\u00e9gorie d&rsquo;\u00e9l\u00e9ment<\/span><\/td>\n<td><span>Gaz rare<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Phase chez STP<\/span><\/td>\n<td><span>Gaz<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Masse atomique [amu]<\/span><\/td>\n<td><span>222<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Densit\u00e9 \u00e0 STP [g \/ cm3]<\/span><\/td>\n<td><span>9,73<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Configuration \u00e9lectronique<\/span><\/td>\n<td><span>[Hg] 6p6<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u00c9tats d&rsquo;oxydation possibles<\/span><\/td>\n<td><span>0<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Affinit\u00e9 \u00e9lectronique [kJ \/ mol]<\/span><\/td>\n<td><span>&#8211;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>\u00c9lectron\u00e9gativit\u00e9 [\u00e9chelle de Pauling]<\/span><\/td>\n<td><span>&#8211;<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>1\u00e8re \u00e9nergie d&rsquo;ionisation [eV]<\/span><\/td>\n<td><span>10.7485<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Ann\u00e9e de d\u00e9couverte<\/span><\/td>\n<td><span>1900<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>D\u00e9couvreur<\/span><\/td>\n<td><span>Dorn, Friedrich Ernst<\/span><\/td>\n<\/tr>\n<tr>\n<th align=\"left\"><span>Propri\u00e9t\u00e9s thermiques<\/span><\/th>\n<th align=\"left\"><\/th>\n<\/tr>\n<tr>\n<td><span>Point de fusion [\u00e9chelle Celsius]<\/span><\/td>\n<td><span>-71<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Point d&rsquo;\u00e9bullition [\u00e9chelle Celsius]<\/span><\/td>\n<td><span>-61,8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Conductivit\u00e9 thermique [W \/ m K]<\/span><\/td>\n<td><span>0,00361<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Chaleur sp\u00e9cifique [J \/ g K]<\/span><\/td>\n<td><span>0,09<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Chaleur de fusion [kJ \/ mol]<\/span><\/td>\n<td><span>2,89<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Chaleur de vaporisation [kJ \/ mol]<\/span><\/td>\n<td><span>16,4<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span>Masse atomique du radon<\/span><\/h3>\n<p><strong><span>La masse atomique du radon est de 222 u.\u00a0<\/span><\/strong><\/p>\n<p><span>Notez que, chaque \u00e9l\u00e9ment peut contenir plus d&rsquo;isotopes, donc cette masse atomique r\u00e9sultante est calcul\u00e9e \u00e0 partir des isotopes naturels et de leur abondance.<\/span><\/p>\n<p><span>L&rsquo;unit\u00e9 de mesure de la masse est l&rsquo;\u00a0\u00a0<\/span><strong><span>unit\u00e9 de masse atomique (amu)<\/span><\/strong><span>\u00a0.\u00a0Une unit\u00e9 de masse atomique \u00e9quivaut \u00e0 1,66 x 10\u00a0<\/span><sup><span>-24<\/span><\/sup><span>\u00a0\u00a0grammes.\u00a0Une unit\u00e9 de masse atomique unifi\u00e9e est\u00a0<\/span><strong><span>approximativement<\/span><\/strong><span>\u00a0la masse d&rsquo;un nucl\u00e9on (soit un seul proton ou neutron) et est num\u00e9riquement \u00e9quivalente \u00e0 1 g \/ mol.<\/span><\/p>\n<h3><span>Densit\u00e9 de radon<\/span><\/h3>\n<p><strong><span>La densit\u00e9 du radon est de\u00a0\u00a0<\/span><\/strong><b><span>9,73 g \/ cm\u00a0<\/span><sup><span>3<\/span><\/sup><\/b><span>\u00a0.<\/span><br \/>\n<a href=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Density-Gas-Liquid-Solid-min.png?c3bb24\"><img loading=\"lazy\" class=\"wp-image-16259 size-medium alignright lazy-loaded\" src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Density-Gas-Liquid-Solid-min-241x300.png?c3bb24\" alt=\"Densit\u00e9 - Gaz - Liquide - Solide\" width=\"241\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/www.radiation-dosimetry.org\/wp-content\/uploads\/2019\/12\/Density-Gas-Liquid-Solid-min-241x300.png?c3bb24\" \/><\/a><\/p>\n<p class=\"wp-caption-text\"><span>Densit\u00e9s typiques de diverses substances \u00e0 pression atmosph\u00e9rique.<\/span><\/p>\n<p><strong><span>La densit\u00e9<\/span><\/strong><span>\u00a0est d\u00e9finie comme la\u00a0<\/span><strong><span>masse par unit\u00e9 de volume<\/span><\/strong><span>\u00a0.\u00a0C&rsquo;est une\u00a0<\/span><a title=\"Propri\u00e9t\u00e9s \u00e9tendues et intensives\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/extensive-and-intensive-properties\/\"><strong><span>propri\u00e9t\u00e9 intensive<\/span><\/strong><\/a><span>\u00a0, qui est math\u00e9matiquement d\u00e9finie comme la masse divis\u00e9e par le volume:<\/span><\/p>\n<p><strong><span>\u03c1 = m \/ V<\/span><\/strong><\/p>\n<p><span>En d&rsquo;autres termes, la densit\u00e9 (\u03c1) d&rsquo;une substance est la masse totale (m) de cette substance divis\u00e9e par le volume total (V) occup\u00e9 par cette substance.\u00a0L&rsquo;unit\u00e9 SI standard est le\u00a0<\/span><strong><span>kilogramme par m\u00e8tre cube<\/span><\/strong><span>\u00a0(\u00a0<\/span><strong><span>kg \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/strong><span>\u00a0).\u00a0L&rsquo;unit\u00e9 standard anglaise est la\u00a0<\/span><strong><span>masse en livres par pied cube<\/span><\/strong><span>\u00a0(\u00a0<\/span><strong><span>lbm \/ ft\u00a0<\/span><sup><span>3<\/span><\/sup><\/strong><span>\u00a0).<\/span><\/p>\n<p><span>Voir aussi:\u00a0<\/span><a title=\"Qu'est-ce que la densit\u00e9 - Physique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-density-physics\/\"><span>Qu&rsquo;est-ce que la densit\u00e9<\/span><\/a><\/p>\n<p><span>Voir aussi:\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-density-physics\/densest-materials-on-the-earth\/\"><span>Mat\u00e9riaux les plus denses de la Terre<\/span><\/a><\/p>\n<h3><span>Radon &#8211; Point de fusion et point d&rsquo;\u00e9bullition<\/span><\/h3>\n<p><strong><span>Point de\u00a0fusion de radon est\u00a0\u00a0<\/span><\/strong><b><span>-71 \u00b0 C<\/span><\/b><span>\u00a0.<\/span><\/p>\n<p><strong><span>Point d&rsquo;\u00a0\u00e9bullition de radon est\u00a0\u00a0<\/span><\/strong><b><span>-61,8 \u00b0 C<\/span><\/b><span>\u00a0.<\/span><\/p>\n<p><span>Notez que ces points sont associ\u00e9s \u00e0 la\u00a0<\/span><a title=\"Pression atmosph\u00e9rique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-pressure-physics\/atmospheric-pressure\/\"><span>pression atmosph\u00e9rique standard<\/span><\/a><span>\u00a0.<\/span><\/p>\n<h3><span>Radon &#8211; chaleur sp\u00e9cifique, chaleur latente de fusion, chaleur latente de vaporisation<\/span><\/h3>\n<p><strong><span>La chaleur sp\u00e9cifique de radon est\u00a0 de\u00a0<\/span><\/strong><b><span>0,09 J \/ g K<\/span><\/b><span>\u00a0.<\/span><\/p>\n<p><strong><span>La chaleur latente de fusion du radon est de\u00a0\u00a0<\/span><\/strong><b><span>2,89 kJ \/ mol<\/span><\/b><span>\u00a0.<\/span><\/p>\n<p><strong><span>La chaleur latente de vaporisation du radon est de\u00a0\u00a0<\/span><\/strong><b><span>16,4 kJ \/ mol<\/span><\/b><span>\u00a0.<\/span><\/p>\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>Cet article est bas\u00e9 sur la traduction automatique de l&rsquo;article original en anglais. Pour plus d&rsquo;informations, voir l&rsquo;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&rsquo;adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Propri\u00e9t\u00e9s du radon &#8211; Caract\u00e9ristiques du radon.\u00a0Le radon est un gaz noble incolore, inodore et insipide, qui se produit naturellement comme produit de d\u00e9sint\u00e9gration du radium.\u00a0Le symbole chimique du radon est Rn.\u00a0Dosim\u00e9trie des rayonnements Le radon\u00a0est un gaz\u00a0noble\u00a0incolore, inodore et insipide\u00a0, qui se produit naturellement comme produit de d\u00e9sint\u00e9gration du radium.\u00a0Le radon\u00a0est un \u00e9l\u00e9ment chimique &#8230; <a title=\"Quelle est la principale propri\u00e9t\u00e9 du radon &#8211; Caract\u00e9ristiques du radon &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.radiation-dosimetry.org\/fr\/quelle-est-la-principale-propriete-du-radon-caracteristiques-du-radon-definition\/\" aria-label=\"En savoir plus sur Quelle est la principale propri\u00e9t\u00e9 du radon &#8211; Caract\u00e9ristiques du radon &#8211; D\u00e9finition\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[49],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Quelle est la principale propri\u00e9t\u00e9 du radon - Caract\u00e9ristiques du radon - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"Propri\u00e9t\u00e9s du radon - Caract\u00e9ristiques du radon. 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Le radon est un gaz noble incolore, inodore et insipide, qui se produit naturellement comme produit de d\\u00e9sint\\u00e9gration du radium. Le symbole chimique du radon est Rn. Dosim\\u00e9trie des rayonnements\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.radiation-dosimetry.org\/fr\/quelle-est-la-principale-propriete-du-radon-caracteristiques-du-radon-definition\/\"]}]},{\"@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\/fr\/wp-json\/wp\/v2\/posts\/15795"}],"collection":[{"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/comments?post=15795"}],"version-history":[{"count":0,"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/posts\/15795\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/media?parent=15795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/categories?post=15795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.radiation-dosimetry.org\/fr\/wp-json\/wp\/v2\/tags?post=15795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}