{"id":11011,"date":"2026-10-30T10:00:00","date_gmt":"2026-10-30T09:00:00","guid":{"rendered":"https:\/\/jlindemann.se\/homepage\/?p=atomic-element-11"},"modified":"2026-10-30T16:14:37","modified_gmt":"2026-10-30T16:14:37","slug":"11-sodium","status":"publish","type":"post","link":"https:\/\/jlindemann.se\/homepage\/11-sodium\/","title":{"rendered":"#11 Sodium"},"content":{"rendered":"<p>\u2018Element of the Week\u2019 \u2013 Sodium: Sodium is a chemical element with the symbol Na (from Latin natrium) and atomic number 11. It is a soft, silvery-white, highly reactive alkali metal. Its only stable isotope is sodium-23. Free sodium does not occur in nature; it is found in minerals and dissolved salts, and sodium and chlorine are among the most common dissolved elements in seawater.<\/p>\n<p>Some properties include:<\/p>\n<ul>\n<li>Atomic Weight = 22.9898 (u)<\/li>\n<li>Density = 0.97 (g\/cm\u00b3)<\/li>\n<li>Electronegativity = 0.93<\/li>\n<li>Fusion Heat = 2.60 (kJ\/mol)<\/li>\n<li>Specific Heat Capacity = 1.228 J\/(g\u00b7K)<\/li>\n<li>Vaporization Heat = 97.42 (kJ\/mol)<\/li>\n<li>Element Group = Alkali Metals<\/li>\n<li>Year Identified = 1807<\/li>\n<li>Discoverer = Humphry Davy<\/li>\n<\/ul>\n<p>Sodium compounds are used in food, glassmaking and chemical manufacturing. The intense yellow light produced by excited sodium atoms is also used in some street lamps.<\/p>\n<p>The name comes from soda, while the symbol Na is derived from the Latin name natrium.<\/p>\n<p>Get \u2018Atomic \u2013 Periodic Table\u2019 now on the <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.jlindemann.science\">Google Play Store<\/a> for more data.<\/p>\n<p>Explore more element data, isotopes and interactive tables with <a href=\"https:\/\/jlindemann.se\/homepage\/atomic-periodic-table\/\">Atomic \u2013 Periodic Table<\/a>.<\/p>\n<p><em>Element data: <a href=\"https:\/\/github.com\/JLindemann42\/Atomic-Shared-Data\">Atomic-Shared-Data<\/a> (English element dataset).<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Element of the Week: Sodium (Na) \u2013 atomic number 11.<\/p>\n","protected":false},"author":2,"featured_media":11027,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[25],"tags":[],"class_list":["post-11011","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-atomic"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/paQrWz-2RB","jetpack-related-posts":[{"id":2393,"url":"https:\/\/jlindemann.se\/homepage\/5-boron\/","url_meta":{"origin":11011,"position":0},"title":"#5 Boron","author":"admin","date":"April 4, 2025","format":false,"excerpt":"\u2018Element of the Week\u2019\u00a0\u2013 Boron: With the symbol B and atomic number 5, boron is a low-abundance element. Often used in the form as a \"boron filament\" Some properties include: Atomic Weight = 10.81 (u) Density = 2.08 (g\/cm^3) Electronegativity = 2.04 Fusion heat = 50.2 (kJ\/mol) Specific Heat Capacity\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_5-1-e1743755748270.png?fit=1013%2C587&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_5-1-e1743755748270.png?fit=1013%2C587&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_5-1-e1743755748270.png?fit=1013%2C587&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_5-1-e1743755748270.png?fit=1013%2C587&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2399,"url":"https:\/\/jlindemann.se\/homepage\/6-carbon\/","url_meta":{"origin":11011,"position":1},"title":"#6 Carbon","author":"admin","date":"April 4, 2025","format":false,"excerpt":"\u2018Element of the Week\u2019\u00a0\u2013 Carbon: With the symbol C and atomic number 6, Carbon is a nonmetallic and tetravalent element. It makes out roughly 0.025% of the Earth's crust and has three naturally occuring isotopes! Some properties include: Atomic Weight = 12.011 (u) Density = 2.2 (g\/cm^3) Electronegativity = 2.55\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_6-e1743755969419.png?fit=1013%2C585&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_6-e1743755969419.png?fit=1013%2C585&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_6-e1743755969419.png?fit=1013%2C585&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/04\/element_6-e1743755969419.png?fit=1013%2C585&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2343,"url":"https:\/\/jlindemann.se\/homepage\/4-beryllium\/","url_meta":{"origin":11011,"position":2},"title":"#4 Beryllium","author":"admin","date":"March 4, 2025","format":false,"excerpt":"'Element of the Week' - Beryllium: With the symbol Be and atomic number 4, beryllium is a gray, strong, lightweight and brittle alkaline earth metal. It was discovered in 1798 by Louis Nicolas Vauquelin. Some properties include: Atomic Weight = 9.01218 (u) Density = 1.85 (g\/cm^3) Electronegativity = 1.57 Fusion\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/element_4-e1741096089451.png?fit=1012%2C582&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/element_4-e1741096089451.png?fit=1012%2C582&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/element_4-e1741096089451.png?fit=1012%2C582&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/element_4-e1741096089451.png?fit=1012%2C582&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":90127,"url":"https:\/\/jlindemann.se\/homepage\/how-to-read-an-element-tile\/","url_meta":{"origin":11011,"position":3},"title":"How to read an element tile","author":"Jonatan Lindemann","date":"November 3, 2026","format":false,"excerpt":"Why does carbon's overview say 12.011 and not just 12? Every square on the periodic table packs the same few facts into a tiny space. Once you know how to read one tile, you can easilty understand all 118. The four parts of a tile Tap carbon (C) in Atomic\u2026","rel":"","context":"In &quot;Guides&quot;","block_context":{"text":"Guides","link":"https:\/\/jlindemann.se\/homepage\/category\/guides\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/desk_1_instagram.jpg?fit=1080%2C1080&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/desk_1_instagram.jpg?fit=1080%2C1080&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/desk_1_instagram.jpg?fit=1080%2C1080&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/desk_1_instagram.jpg?fit=1080%2C1080&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2025\/03\/desk_1_instagram.jpg?fit=1080%2C1080&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":90104,"url":"https:\/\/jlindemann.se\/homepage\/helium-found-on-the-sun-first\/","url_meta":{"origin":11011,"position":4},"title":"The element found on the Sun before the Earth","author":"Jonatan Lindemann","date":"November 2, 2026","format":false,"excerpt":"Helium is the only element discovered in space before anyone found it on Earth. It took 27 years, and a uranium mineral, to bring it down to the ground.","rel":"","context":"In &quot;article&quot;","block_context":{"text":"article","link":"https:\/\/jlindemann.se\/homepage\/category\/article\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":90001,"url":"https:\/\/jlindemann.se\/homepage\/electron-configuration\/","url_meta":{"origin":11011,"position":5},"title":"Electron configuration","author":"Jonatan Lindemann","date":"November 1, 2026","format":false,"excerpt":"Shells, subshells, the filling order, Hund's rule and the exceptions \u2014 how to write the electron configuration of any element.","rel":"","context":"In &quot;Guides&quot;","block_context":{"text":"Guides","link":"https:\/\/jlindemann.se\/homepage\/category\/guides\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/jlindemann.se\/homepage\/wp-content\/uploads\/2026\/10\/Na_Sodium-e1793376873302.jpg?fit=1280%2C720&ssl=1","_links":{"self":[{"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/posts\/11011","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/comments?post=11011"}],"version-history":[{"count":2,"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/posts\/11011\/revisions"}],"predecessor-version":[{"id":11029,"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/posts\/11011\/revisions\/11029"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/media\/11027"}],"wp:attachment":[{"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/media?parent=11011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/categories?post=11011"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jlindemann.se\/homepage\/wp-json\/wp\/v2\/tags?post=11011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}