{"version":"1.0","provider_name":"Chemuza","provider_url":"https:\/\/chemuza.org\/it","author_name":"Squadra Chemuza","author_url":"https:\/\/chemuza.org\/it\/author\/redazione\/","title":"Protoattinio - Chemuza","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"LYWDG97UG3\"><a href=\"https:\/\/chemuza.org\/it\/protoattinio\/\">Protoattinio<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/chemuza.org\/it\/protoattinio\/embed\/#?secret=LYWDG97UG3\" width=\"600\" height=\"338\" title=\"&#8220;Protoattinio&#8221; &#8212; Chemuza\" data-secret=\"LYWDG97UG3\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n<\/script>\n","description":"Il protoattinio \u00e8 uno degli elementi chimici pi\u00f9 rari in natura. Nella crosta terrestre esiste in circa 0,00001 parti per miliardo. \u00c8 disponibile anche in pechblenda a circa 0,1 parti per milione. Ci\u00f2 lo rende un materiale di grande valore economico, sebbene siano note poche applicazioni. Scopri di pi\u00f9 su questo metallo raro, come la ... Per saperne di pi\u00f9"}