{"id":5983,"date":"2020-10-13T12:23:08","date_gmt":"2020-10-13T06:53:08","guid":{"rendered":"http:\/\/astan.lk\/al_virtualclassroom\/?p=5983"},"modified":"2020-10-13T12:23:55","modified_gmt":"2020-10-13T06:53:55","slug":"s-and-p-block-elements-trend","status":"publish","type":"post","link":"https:\/\/astan.lk\/al_virtualclassroom\/s-and-p-block-elements-trend\/","title":{"rendered":"s, p block elements&#8217; trend"},"content":{"rendered":"<h3>solubility of the salts of s block salts in water<\/h3>\n<p><a href=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/01\/slbl.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11077\" src=\"http:\/\/astan.lk\/al_virtualclassroom\/wp-content\/uploads\/2017\/01\/slbl-300x148.png\" alt=\"\" width=\"504\" height=\"248\" \/><\/a><\/p>\n<p>\u2022 Variation of solubility of sulphates and hydroxides down the group can be explained by using lattice enthalpy and hydration enthalpy values.<\/p>\n<p>\u2022 Variation of thermal stability of s block carbonates, bicarbonates and nitrates down a group can be explained by using electronegativity values of elements and ionic nature of those compounds.<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"text-decoration: underline;\"><strong>Acidic\/basic\/amphoteric nature of halides (eg. chlorides) of third period <\/strong><\/span><\/h3>\n<p><strong>NaCl &#8211; Neutral \u00a0 <\/strong><\/p>\n<p><strong>MgCl<sub>2<\/sub> &#8211; very weakly acidic\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>AlCl<sub>3<\/sub> \u00a0&#8211; acidic\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>SiCl<sub>4<\/sub> &#8211; acidic\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>PCl<sub>5<\/sub> &#8211; acidic\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>SCl<sub>2<\/sub> \/S<sub>2<\/sub>Cl<sub>2<\/sub> &#8211;\u00a0 acidic<\/strong><\/p>\n<p><strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3><strong><span style=\"text-decoration: underline;\">Acidic\/basic\/amphoteric nature of oxides of elements of the 3rd period <\/span><\/strong><\/h3>\n<p><strong>Na<sub>2<\/sub>O \u00a0strongly basic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>MgO \u00a0basic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>Al<sub>2<\/sub>O<sub>3<\/sub> \u00a0amphoteric \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>SiO<sub>2<\/sub> \u00a0very weakly acidic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>P<sub>2<\/sub>O<sub>5<\/sub> \u00a0weakly acidic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>SO<sub>2<\/sub> \/SO<sub>3<\/sub> \u00a0acidic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>Cl<sub>2<\/sub>O<sub>7<\/sub> \u00a0strongly acidic<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3><\/h3>\n<h3><span style=\"text-decoration: underline;\"><strong>Nature of oxides down the group 15<\/strong><\/span><\/h3>\n<p>\u039d<sub>2<\/sub>\u039f<sub>3<\/sub> \u2212 acidic<\/p>\n<p>P<sub>2<\/sub>\u039f<sub>3<\/sub> \u2212 weakly acidic<\/p>\n<p>As<sub>2<\/sub>\u039f<sub>3<\/sub> \u2212 amphoteric<\/p>\n<p>Sb<sub>2<\/sub>\u039f<sub>3<\/sub> \u2212 amphoteric<\/p>\n<p>Bi<sub>2<\/sub>\u039f<sub>3<\/sub> \u2212 basic<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"text-decoration: underline;\"><strong>Acidic\/basic\/amphoteric nature of hydroxides of elements of the 3rd period<\/strong><\/span><\/h3>\n<p><strong> NaOH \u00a0strongly basic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>Mg(OH)<sub>2<\/sub> \u00a0basic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>Al(OH)<sub>3<\/sub> \u00a0amphoteric \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>Si(OH)<sub>4<\/sub> \u00a0\u2192<sup>-H<sub>2<\/sub>O\u00a0<\/sup> H<sub>2<\/sub>SiO<sub>3<\/sub> \u00a0 very weakly acidic \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>P(OH)<sub>5<\/sub> \u00a0 \u2192<sup>-H<sub>2<\/sub>O<\/sup>\u00a0 H<sub>3<\/sub>PO<sub>4<\/sub> \u00a0weakly acidic \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>S(OH)<sub>6<\/sub> \u00a0 \u2192<sup>-2H<sub>2<\/sub>O<\/sup>\u00a0 H<sub>2<\/sub>SO<sub>4<\/sub> \u00a0acidic \u00a0 \u00a0<\/strong><\/p>\n<p><strong>Cl(OH)<sub>7<\/sub> \u00a0\u2192<sup>-3H<sub>2<\/sub>O\u00a0<\/sup> \u00a0HClO<sub>4<\/sub> \u00a0strongly acidic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"text-decoration: underline;\"><strong>Acidic\/basic\/amphoteric nature of hydrides of the 3rd period<\/strong><\/span><\/h3>\n<p><strong>NaH \u00a0strongly basic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>MgH<sub>2<\/sub> \u00a0weakly basic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>AlH<sub>3<\/sub> \u00a0amphoteric \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>SiH<sub>4<\/sub> \u00a0very weakly acidic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>PH<sub>3<\/sub> \u00a0very weakly basic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/strong><\/p>\n<p><strong>H<sub>2<\/sub>S \u00a0weakly acidic \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<p><strong>HCl \u00a0very strongly acidic<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>solubility of the salts of s block salts in water \u2022 Variation of solubility of sulphates and hydroxides down the group can be explained by using lattice enthalpy and hydration enthalpy values. \u2022 Variation of thermal stability of s block carbonates, bicarbonates and nitrates down a group can be explained by using electronegativity values of [&hellip;]<\/p>\n","protected":false},"author":842,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[14,1662],"tags":[],"class_list":["post-5983","post","type-post","status-publish","format-standard","hentry","category-chemistry","category-unit-06"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>s, p block elements&#039; trend - Learning &amp; Education Portal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/astan.lk\/al_virtualclassroom\/s-and-p-block-elements-trend\/\" \/>\n<meta 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