{"id":2613,"date":"2025-06-27T16:20:13","date_gmt":"2025-06-27T10:50:13","guid":{"rendered":"https:\/\/texpertssolutions.com\/notes\/?p=2613"},"modified":"2025-06-29T16:44:51","modified_gmt":"2025-06-29T11:14:51","slug":"lead-pb","status":"publish","type":"post","link":"https:\/\/texpertssolutions.com\/notes\/2025\/06\/27\/lead-pb\/","title":{"rendered":"Lead (Pb)"},"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>: Lead<\/li>\n\n\n\n<li><strong>Discovered By<\/strong>: Known since ancient times (used by Egyptians and Romans)<\/li>\n\n\n\n<li><strong>Year of Discovery<\/strong>: Ancient (prehistory)<\/li>\n\n\n\n<li><strong>Category<\/strong>: Post-transition Metal<\/li>\n\n\n\n<li><strong>Group<\/strong>: 14<\/li>\n\n\n\n<li><strong>State at Room Temperature<\/strong>: Solid (soft, bluish-gray metal) \u2699\ufe0f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lead is a <strong>dense, soft metal<\/strong> that\u2019s easy to shape and has been used for thousands of years.<\/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>: Pb<\/li>\n\n\n\n<li><strong>Atomic Number<\/strong>: 82<\/li>\n\n\n\n<li><strong>Atomic Mass<\/strong>: ~207.2 u<\/li>\n\n\n\n<li><strong>Valency<\/strong>: +2, +4<\/li>\n\n\n\n<li><strong>Electronic Configuration<\/strong>: [Xe] 4f\u00b9\u2074 5d\u00b9\u2070 6s\u00b2 6p\u00b2<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lead is resistant to corrosion but can react with acids and bases under certain conditions.<\/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\">Lead was once widely used in pipes, paints, and gasoline additives but is now limited due to its <strong>toxicity<\/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 symbol \u201cPb\u201d comes from the Latin word <em>\u201cplumbum\u201d<\/em> meaning \u201cliquid silver\u201d \u2697\ufe0f<\/li>\n\n\n\n<li>Romans used lead for plumbing and cooking vessels, not knowing it\u2019s poisonous \ud83c\udfdb\ufe0f<\/li>\n\n\n\n<li>Lead can build up in the body and cause serious health problems, especially in children \u26a0\ufe0f<\/li>\n\n\n\n<li>Despite toxicity, lead shields radiation in hospitals and nuclear facilities \ud83d\udee1\ufe0f<\/li>\n\n\n\n<li>It\u2019s very dense\u2014heavier than many other metals of similar size! \u2696\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\udd27 Common Uses<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Batteries<\/strong>: Lead-acid batteries for cars and backup power \ud83d\udd0b<\/li>\n\n\n\n<li><strong>Radiation Shielding<\/strong>: Protective gear and barriers in X-ray and nuclear facilities \ud83d\udee1\ufe0f<\/li>\n\n\n\n<li><strong>Ammunition<\/strong>: Bullets and shot (though being phased out due to environmental concerns) \ud83d\udd2b<\/li>\n\n\n\n<li><strong>Glass &amp; Ceramics<\/strong>: Adds weight and durability in specialty glass and glazes \u2697\ufe0f<\/li>\n\n\n\n<li><strong>Alloys<\/strong>: Combined with other metals to improve strength and corrosion resistance \u2699\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\">Lead is a <strong>useful but hazardous metal<\/strong> with a long history. For students, it\u2019s a good example of why understanding <strong>element properties<\/strong> is important for health and environment! \ud83c\udf0d\u26a0\ufe0f<\/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 Lead is a dense, soft metal that\u2019s easy to shape and has been used for thousands of years. \ud83d\udd38 Chemical Properties Lead is resistant to corrosion but can react with acids and bases under certain conditions. \ud83d\udcd8 Basic Things to Know Lead was once widely used in pipes, paints, and gasoline additives&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2696,"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-2613","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<!-- 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