{"id":2616,"date":"2025-06-27T16:28:10","date_gmt":"2025-06-27T10:58:10","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2616"},"modified":"2025-06-29T16:44:51","modified_gmt":"2025-06-29T11:14:51","slug":"astatine-at","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/","title":{"rendered":"Astatine (At)"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\ud83d\udd39 Basic Information<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Element Name<\/strong>: Astatine<\/li>\n\n\n\n<li><strong>Discovered By<\/strong>: Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segr\u00e8<\/li>\n\n\n\n<li><strong>Year of Discovery<\/strong>: 1940<\/li>\n\n\n\n<li><strong>Category<\/strong>: Halogen (Group 17)<\/li>\n\n\n\n<li><strong>Group<\/strong>: 17 (Halogens)<\/li>\n\n\n\n<li><strong>State at Room Temperature<\/strong>: Solid (assumed, not directly observed in bulk) \u2699\ufe0f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Astatine is an <strong>extremely rare, radioactive element<\/strong> that is part of the <strong>halogen family<\/strong>, like iodine and chlorine.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd38 Chemical Properties<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chemical Symbol<\/strong>: At<\/li>\n\n\n\n<li><strong>Atomic Number<\/strong>: 85<\/li>\n\n\n\n<li><strong>Atomic Mass<\/strong>: ~210 u (varies with isotope)<\/li>\n\n\n\n<li><strong>Valency<\/strong>: -1, +1, +3, +5, +7<\/li>\n\n\n\n<li><strong>Electronic Configuration<\/strong>: [Xe] 4f\u00b9\u2074 5d\u00b9\u2070 6s\u00b2 6p\u2075<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Astatine is chemically similar to iodine but is much more <strong>unstable and radioactive<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcd8 Basic Things to Know<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Only <strong>tiny traces of astatine<\/strong> exist naturally \u2014 it&#8217;s <strong>so rare<\/strong> that scientists have never seen a visible piece of it. Most of what we know is based on <strong>predictions and lab experiments<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udd14 Interesting Facts<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The name <strong>\u201castatine\u201d<\/strong> comes from the Greek word <em>\u201castatos\u201d<\/em>, meaning <strong>unstable<\/strong> \u26a0\ufe0f<\/li>\n\n\n\n<li>Astatine is the <strong>rarest naturally occurring element<\/strong> in Earth\u2019s crust \ud83c\udf0d<\/li>\n\n\n\n<li>If you had enough astatine to see, it would <strong>vaporize from its own heat<\/strong> caused by radiation \ud83d\udca8\ud83d\udd25<\/li>\n\n\n\n<li>Its properties are not fully known due to how <strong>short-lived<\/strong> it is<\/li>\n\n\n\n<li>It is <strong>radioactive and toxic<\/strong>, so it&#8217;s handled only under strict lab conditions \ud83e\uddea\ud83d\uded1<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd27 Common Uses<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\ufe0f Astatine has <strong>no everyday or commercial use<\/strong> because of its rarity and high radioactivity.<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cancer Treatment Research<\/strong>: Astatine-211 is being studied for <strong>targeted alpha therapy<\/strong> (TAT) for cancer cells \ud83e\uddec\ud83e\ude7a<\/li>\n\n\n\n<li><strong>Scientific Research<\/strong>: Used in experiments to understand radioactive halogens and atomic behavior \ud83d\udd2c<\/li>\n\n\n\n<li><strong>Nuclear Medicine<\/strong>: Shows promise in treating <strong>thyroid and brain tumors<\/strong>, though it&#8217;s still experimental \u2695\ufe0f<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcda Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Astatine is a <strong>mysterious and powerful element<\/strong> \u2014 rare, radioactive, and still being studied. For students, it shows how even elements we can\u2019t easily see can hold <strong>huge potential in science and medicine<\/strong>! \ud83c\udf20\ud83d\udd0d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udd39 Basic Information Astatine is an extremely rare, radioactive element that is part of the halogen family, like iodine and chlorine. \ud83d\udd38 Chemical Properties Astatine is chemically similar to iodine but is much more unstable and radioactive. \ud83d\udcd8 Basic Things to Know Only tiny traces of astatine exist naturally \u2014 it&#8217;s so rare that scientists&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2711,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[672],"tags":[656,652,653,661,647,643,648,670,666,664,662,650,651,645,660,663,655,646,657,659,658,665,642,644,668,669,667,649,671,654],"class_list":["post-2616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-periodic-table-for-students","tag-actinides","tag-alkali-metals","tag-alkaline-earth-metals","tag-atomic-mass","tag-atomic-number","tag-chemical-elements","tag-chemical-symbols","tag-chemistry-basics","tag-chemistry-study-guide","tag-electron-configuration","tag-electronegativity","tag-element-groups","tag-element-periods","tag-element-properties","tag-halogens","tag-ionization-energy","tag-lanthanides","tag-mendeleev-periodic-table","tag-metalloids","tag-noble-gases","tag-nonmetals","tag-oxidation-states","tag-periodic-table","tag-periodic-table-elements","tag-periodic-table-explained","tag-periodic-table-facts","tag-periodic-table-for-students","tag-periodic-trends","tag-science-education","tag-transition-metals"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\ud83d\udd39 Basic Information Element Name: Astatine Discovered By: Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segr\u00e8 Year of Discovery: 1940 Category: Halogen (Group 17) Group: 17 (Halogens) State at Room Temperature: Solid (assumed, not directly observed in bulk) \u2699\ufe0f Astatine is an extremely rare, radioactive element that is part of the halogen family, like iodine\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Team ClassWork\"\/>\n\t<meta name=\"google-site-verification\" content=\"8E2CwmBfygQjWJcbOYdmmbNcCgBNAWjtD-yz1QQysCw\" \/>\n\t<meta name=\"keywords\" content=\"actinides,alkali metals,alkaline earth metals,atomic mass,atomic number,chemical elements,chemical symbols,chemistry basics,chemistry study guide,electron configuration,electronegativity,element groups,element periods,element properties,halogens,ionization energy,lanthanides,mendeleev periodic table,metalloids,noble gases,nonmetals,oxidation states,periodic table,periodic table elements,periodic table explained,periodic table facts,periodic table for students,periodic trends,science education,transition metals\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#article\",\"name\":\"Astatine (At) | ClassWork\",\"headline\":\"Astatine (At)\",\"author\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/author\\\/texnotesadmin\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/#person\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/texpertssolutions.com\\\/notes\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/70.png?fit=1280%2C720&ssl=1\",\"width\":1280,\"height\":720},\"datePublished\":\"2025-06-27T16:28:10+05:30\",\"dateModified\":\"2025-06-29T16:44:51+05:30\",\"inLanguage\":\"en-US\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#webpage\"},\"articleSection\":\"Periodic Table for Students, actinides, alkali metals, alkaline earth metals, atomic mass, atomic number, chemical elements, chemical symbols, chemistry basics, chemistry study guide, electron configuration, electronegativity, element groups, element periods, element properties, halogens, ionization energy, lanthanides, Mendeleev periodic table, metalloids, noble gases, nonmetals, oxidation states, periodic table, periodic table elements, periodic table explained, periodic table facts, periodic table for students, periodic trends, science education, transition metals\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/category\\\/periodic-table-for-students\\\/#listItem\",\"name\":\"Periodic Table for Students\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/category\\\/periodic-table-for-students\\\/#listItem\",\"position\":2,\"name\":\"Periodic Table for Students\",\"item\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/category\\\/periodic-table-for-students\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#listItem\",\"name\":\"Astatine (At)\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#listItem\",\"position\":3,\"name\":\"Astatine (At)\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/category\\\/periodic-table-for-students\\\/#listItem\",\"name\":\"Periodic Table for Students\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/#person\",\"name\":\"Team ClassWork\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#personImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/facc1dbe260d7045db141528871a1d1294c47bb8883f2c37e197d7da9b59ae7b?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"Team ClassWork\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/author\\\/texnotesadmin\\\/#author\",\"url\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/author\\\/texnotesadmin\\\/\",\"name\":\"Team ClassWork\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#authorImage\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/facc1dbe260d7045db141528871a1d1294c47bb8883f2c37e197d7da9b59ae7b?s=96&d=mm&r=g\",\"width\":96,\"height\":96,\"caption\":\"Team ClassWork\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#webpage\",\"url\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/\",\"name\":\"Astatine (At) | ClassWork\",\"description\":\"\\ud83d\\udd39 Basic Information Element Name: Astatine Discovered By: Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segr\\u00e8 Year of Discovery: 1940 Category: Halogen (Group 17) Group: 17 (Halogens) State at Room Temperature: Solid (assumed, not directly observed in bulk) \\u2699\\ufe0f Astatine is an extremely rare, radioactive element that is part of the halogen family, like iodine\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/author\\\/texnotesadmin\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/author\\\/texnotesadmin\\\/#author\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/texpertssolutions.com\\\/notes\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/70.png?fit=1280%2C720&ssl=1\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#mainImage\",\"width\":1280,\"height\":720},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/2025\\\/06\\\/27\\\/astatine-at\\\/#mainImage\"},\"datePublished\":\"2025-06-27T16:28:10+05:30\",\"dateModified\":\"2025-06-29T16:44:51+05:30\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/#website\",\"url\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/\",\"name\":\"ClassWork\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/texpertssolutions.com\\\/notes\\\/#person\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Astatine (At) | ClassWork","description":"\ud83d\udd39 Basic Information Element Name: Astatine Discovered By: Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segr\u00e8 Year of Discovery: 1940 Category: Halogen (Group 17) Group: 17 (Halogens) State at Room Temperature: Solid (assumed, not directly observed in bulk) \u2699\ufe0f Astatine is an extremely rare, radioactive element that is part of the halogen family, like iodine","canonical_url":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/","robots":"max-image-preview:large","keywords":"actinides,alkali metals,alkaline earth metals,atomic mass,atomic number,chemical elements,chemical symbols,chemistry basics,chemistry study guide,electron configuration,electronegativity,element groups,element periods,element properties,halogens,ionization energy,lanthanides,mendeleev periodic table,metalloids,noble gases,nonmetals,oxidation states,periodic table,periodic table elements,periodic table explained,periodic table facts,periodic table for students,periodic trends,science education,transition metals","webmasterTools":{"google-site-verification":"8E2CwmBfygQjWJcbOYdmmbNcCgBNAWjtD-yz1QQysCw","miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#article","name":"Astatine (At) | ClassWork","headline":"Astatine (At)","author":{"@id":"https:\/\/texpertssolutions.com\/notes\/author\/texnotesadmin\/#author"},"publisher":{"@id":"https:\/\/texpertssolutions.com\/notes\/#person"},"image":{"@type":"ImageObject","url":"https:\/\/i0.wp.com\/texpertssolutions.com\/notes\/wp-content\/uploads\/2025\/06\/70.png?fit=1280%2C720&ssl=1","width":1280,"height":720},"datePublished":"2025-06-27T16:28:10+05:30","dateModified":"2025-06-29T16:44:51+05:30","inLanguage":"en-US","mainEntityOfPage":{"@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#webpage"},"isPartOf":{"@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#webpage"},"articleSection":"Periodic Table for Students, actinides, alkali metals, alkaline earth metals, atomic mass, atomic number, chemical elements, chemical symbols, chemistry basics, chemistry study guide, electron configuration, electronegativity, element groups, element periods, element properties, halogens, ionization energy, lanthanides, Mendeleev periodic table, metalloids, noble gases, nonmetals, oxidation states, periodic table, periodic table elements, periodic table explained, periodic table facts, periodic table for students, periodic trends, science education, transition metals"},{"@type":"BreadcrumbList","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/texpertssolutions.com\/notes\/#listItem","position":1,"name":"Home","item":"https:\/\/texpertssolutions.com\/notes\/","nextItem":{"@type":"ListItem","@id":"https:\/\/texpertssolutions.com\/notes\/category\/periodic-table-for-students\/#listItem","name":"Periodic Table for Students"}},{"@type":"ListItem","@id":"https:\/\/texpertssolutions.com\/notes\/category\/periodic-table-for-students\/#listItem","position":2,"name":"Periodic Table for Students","item":"https:\/\/texpertssolutions.com\/notes\/category\/periodic-table-for-students\/","nextItem":{"@type":"ListItem","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#listItem","name":"Astatine (At)"},"previousItem":{"@type":"ListItem","@id":"https:\/\/texpertssolutions.com\/notes\/#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#listItem","position":3,"name":"Astatine (At)","previousItem":{"@type":"ListItem","@id":"https:\/\/texpertssolutions.com\/notes\/category\/periodic-table-for-students\/#listItem","name":"Periodic Table for Students"}}]},{"@type":"Person","@id":"https:\/\/texpertssolutions.com\/notes\/#person","name":"Team ClassWork","image":{"@type":"ImageObject","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#personImage","url":"https:\/\/secure.gravatar.com\/avatar\/facc1dbe260d7045db141528871a1d1294c47bb8883f2c37e197d7da9b59ae7b?s=96&d=mm&r=g","width":96,"height":96,"caption":"Team ClassWork"}},{"@type":"Person","@id":"https:\/\/texpertssolutions.com\/notes\/author\/texnotesadmin\/#author","url":"https:\/\/texpertssolutions.com\/notes\/author\/texnotesadmin\/","name":"Team ClassWork","image":{"@type":"ImageObject","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/facc1dbe260d7045db141528871a1d1294c47bb8883f2c37e197d7da9b59ae7b?s=96&d=mm&r=g","width":96,"height":96,"caption":"Team ClassWork"}},{"@type":"WebPage","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#webpage","url":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/","name":"Astatine (At) | ClassWork","description":"\ud83d\udd39 Basic Information Element Name: Astatine Discovered By: Dale R. Corson, Kenneth Ross MacKenzie, Emilio Segr\u00e8 Year of Discovery: 1940 Category: Halogen (Group 17) Group: 17 (Halogens) State at Room Temperature: Solid (assumed, not directly observed in bulk) \u2699\ufe0f Astatine is an extremely rare, radioactive element that is part of the halogen family, like iodine","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/texpertssolutions.com\/notes\/#website"},"breadcrumb":{"@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#breadcrumblist"},"author":{"@id":"https:\/\/texpertssolutions.com\/notes\/author\/texnotesadmin\/#author"},"creator":{"@id":"https:\/\/texpertssolutions.com\/notes\/author\/texnotesadmin\/#author"},"image":{"@type":"ImageObject","url":"https:\/\/i0.wp.com\/texpertssolutions.com\/notes\/wp-content\/uploads\/2025\/06\/70.png?fit=1280%2C720&ssl=1","@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#mainImage","width":1280,"height":720},"primaryImageOfPage":{"@id":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/astatine-at\/#mainImage"},"datePublished":"2025-06-27T16:28:10+05:30","dateModified":"2025-06-29T16:44:51+05:30"},{"@type":"WebSite","@id":"https:\/\/texpertssolutions.com\/notes\/#website","url":"https:\/\/texpertssolutions.com\/notes\/","name":"ClassWork","inLanguage":"en-US","publisher":{"@id":"https:\/\/texpertssolutions.com\/notes\/#person"}}]}},"aioseo_meta_data":{"post_id":"2616","title":null,"description":null,"keywords":null,"keyphrases":{"focus":[],"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"Article","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","location":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2025-06-27 10:45:03","updated":"2026-10-21 04:06:25","focus_keyword":null,"additional_keywords":null,"truseo_locale":null,"seo_analyzer_scan_date":null},"jetpack_featured_media_url":"https:\/\/i0.wp.com\/texpertssolutions.com\/notes\/wp-content\/uploads\/2025\/06\/70.png?fit=1280%2C720&ssl=1","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/comments?post=2616"}],"version-history":[{"count":1,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2616\/revisions"}],"predecessor-version":[{"id":2629,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/posts\/2616\/revisions\/2629"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media\/2711"}],"wp:attachment":[{"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/media?parent=2616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/categories?post=2616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/texpertssolutions.com\/notes\/wp-json\/wp\/v2\/tags?post=2616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}