{"id":4515,"date":"2021-06-06T20:53:43","date_gmt":"2021-06-06T20:53:43","guid":{"rendered":"https:\/\/enorcerna.com\/wiki\/definition\/alkaline-earths\/"},"modified":"2021-06-06T20:53:43","modified_gmt":"2021-06-06T20:53:43","slug":"alkaline-earths","status":"publish","type":"post","link":"https:\/\/enorcerna.com\/wiki\/definition\/alkaline-earths\/","title":{"rendered":"alkaline earths"},"content":{"rendered":"<div>\n<p>Adjective <strong>alkaline earth<\/strong> It is used in the field of <strong>chemistry<\/strong> to rate a <strong>group of metals<\/strong> that stand out for <strong>be strongly basic<\/strong>.  The alkaline earth elements are the <strong>radio<\/strong>, the <strong>barium<\/strong>, the <strong>strontium<\/strong>, the <strong>calcium<\/strong>, the <strong>magnesium<\/strong> and the <strong>beryllium<\/strong>.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" loading=\"lazy\" src=\"https:\/\/enorcerna.com\/wiki\/wp-content\/uploads\/2021\/06\/alcalinoterreo.jpg\" alt=\"Alkaline earth\" width=\"380\" height=\"224\" class=\"alignright size-full wp-image-65646\" align=\"right\"\/>The denomination is linked to the fact that <strong>oxides<\/strong> of these metals were mentioned as <strong>\"land\"<\/strong>.  Alkalinity, meanwhile, is associated with the basic properties of these oxides.<\/p>\n<p>Compared to alkali metals, alkaline earths have lower reactivity and higher hardness and density.  They are good drivers of <strong>electricity<\/strong> that can form ionic compounds and that present a pair of electrons in their outer shell (their valence is <strong>+2<\/strong>).<\/p>\n<p>Alkaline earths are found in the <strong>group 2<\/strong> of the <strong>periodic table<\/strong> Of elements.  That is why they are between the <strong>group 1<\/strong> (which brings together the alkalis) and the <strong>Group 3<\/strong>.<\/p>\n<p>Off-white or silvery in color, the alkaline earth metals are almost stable.  Returning to the comparison with <strong>alkaline<\/strong>, these elements of the <strong>group 2<\/strong> of the periodic table melt at a higher temperature.<\/p>\n<p>It is estimated that alkaline earths constitute about 4% of the crust of the <strong>planet<\/strong> <strong>Land<\/strong>.  In any case, they cannot be found free.  Also, while magnesium and calcium are fairly common, other alkaline earths are rarer, such as radium.  In this way, it is difficult to establish generalizations when referring to this class of elements, since in many cases their properties and characteristics are dissimilar.<\/p>\n<p>Obtaining alkaline earths can be achieved by <strong>reduction<\/strong> of its oxides.  Another option is to resort to <strong>electrolysis<\/strong> of its already melted halides.<\/p>\n<\/p><\/div>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;4515&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;4&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;alkaline earths&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 4px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">Rate this post<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Adjective alkaline earth It is used in the field of chemistry to&hellip;<\/p>\n","protected":false},"author":1,"featured_media":4516,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-4515","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-definition"],"_links":{"self":[{"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/posts\/4515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/comments?post=4515"}],"version-history":[{"count":0,"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/posts\/4515\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/media\/4516"}],"wp:attachment":[{"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/media?parent=4515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/categories?post=4515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/enorcerna.com\/wiki\/wp-json\/wp\/v2\/tags?post=4515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}