{"id":2411,"date":"2025-06-27T14:15:18","date_gmt":"2025-06-27T08:45:18","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2411"},"modified":"2025-06-29T16:44:54","modified_gmt":"2025-06-29T11:14:54","slug":"potassium-k","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/potassium-k\/","title":{"rendered":"Potassium (K)"},"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>: Potassium<\/li>\n\n\n\n<li><strong>Discovered By<\/strong>: Humphry Davy<\/li>\n\n\n\n<li><strong>Year of Discovery<\/strong>: 1807<\/li>\n\n\n\n<li><strong>Category<\/strong>: Alkali Metal<\/li>\n\n\n\n<li><strong>Group<\/strong>: 1 (Group I \u2013 Alkali Metals)<\/li>\n\n\n\n<li><strong>State at Room Temperature<\/strong>: Solid (soft, silvery metal) \ud83e\uddca<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Potassium is a <strong>highly reactive metal<\/strong> that is essential for life but never found free in nature. It\u2019s soft enough to cut with a knife and reacts instantly with water.<\/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>: K<\/li>\n\n\n\n<li><strong>Atomic Number<\/strong>: 19<\/li>\n\n\n\n<li><strong>Atomic Mass<\/strong>: ~39.10 u<\/li>\n\n\n\n<li><strong>Valency<\/strong>: 1<\/li>\n\n\n\n<li><strong>Electronic Configuration<\/strong>: [Ar] 4s\u00b9<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Potassium is <strong>extremely reactive<\/strong>, especially with water, producing <strong>heat, hydrogen gas, and a purple flame<\/strong>. This is why it&#8217;s stored under oil to prevent accidental reactions.<\/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\">Potassium is <strong>vital for living cells<\/strong>, especially in plants and animals. In humans, it helps maintain proper nerve function and muscle control. \u26a1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is part of the <strong>alkali metals<\/strong> \u2014 a group of shiny, soft, and highly reactive metals. Though potassium is a metal, many people know it best as a <strong>nutrient<\/strong> in food.<\/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>Potassium was the <strong>first metal<\/strong> to be isolated by electrolysis.<\/li>\n\n\n\n<li>Its name comes from \u201c<strong>potash<\/strong>,\u201d a compound made by soaking wood ash in water.<\/li>\n\n\n\n<li>It burns with a <strong>lilac-colored flame<\/strong> when ignited. \ud83d\udd25\ud83d\udc9c<\/li>\n\n\n\n<li>The symbol <strong>K<\/strong> comes from the Latin word \u201c<strong>kalium<\/strong>.\u201d<\/li>\n\n\n\n<li>Bananas are famous for containing potassium, but <strong>spinach and sweet potatoes have even more!<\/strong> \ud83c\udf4c\ud83e\udd6c<\/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<ul class=\"wp-block-list\">\n<li><strong>Fertilizers<\/strong>: Potassium is a major ingredient in plant fertilizers, helping crops grow. \ud83c\udf31<\/li>\n\n\n\n<li><strong>Food &amp; Nutrition<\/strong>: Essential mineral in the human diet; found in fruits, vegetables, and dairy.<\/li>\n\n\n\n<li><strong>Medicine<\/strong>: Used in treating low potassium levels (hypokalemia).<\/li>\n\n\n\n<li><strong>Industrial Use<\/strong>: Used in making soaps, glass, and explosives.<\/li>\n\n\n\n<li><strong>Lab Use<\/strong>: Potassium compounds are often used in chemical experiments.<\/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\">Potassium is a <strong>tiny powerhouse of energy and life<\/strong>. It&#8217;s a soft metal that reacts dramatically in the lab, yet it&#8217;s something we consume daily in food for healthy muscles and nerves. For students, it&#8217;s a fascinating mix of chemistry and biology. For everyone else, it&#8217;s proof that <strong>even the elements inside a banana have a big story to tell<\/strong>! \ud83c\udf4c\ud83d\udd2c<\/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 Potassium is a highly reactive metal that is essential for life but never found free in nature. It\u2019s soft enough to cut with a knife and reacts instantly with water. \ud83d\udd38 Chemical Properties Potassium is extremely reactive, especially with water, producing heat, hydrogen gas, and a purple flame. This is why it&#8217;s&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2779,"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-2411","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: Potassium Discovered By: Humphry Davy Year of Discovery: 1807 Category: Alkali Metal Group: 1 (Group I \u2013 Alkali Metals) State at Room Temperature: Solid (soft, silvery metal) \ud83e\uddca Potassium is a highly reactive metal that is essential for life but never found free in nature. 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