{"id":2431,"date":"2016-11-21T00:05:09","date_gmt":"2016-11-20T23:05:09","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesmontgri\/?p=2431"},"modified":"2016-11-21T00:03:06","modified_gmt":"2016-11-20T23:03:06","slug":"atom-2","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/iesmontgri\/motcurios\/atom-2\/","title":{"rendered":"\u00c0TOM"},"content":{"rendered":"<p><em><strong>\u00c9s l&#8217;<span style=\"color: #800000;\">\u00e0tom<\/span> un element indivisible tal i com creien els grecs?<\/strong><\/em><\/p>\n<p>La paraula \u00e0tom prov\u00e9 de la uni\u00f3 del mot grec <strong>\u03c4\u03bf\u03bc\u03bf\u03bd<\/strong> que significa part o divisi\u00f3 amb la lletra <strong>A<\/strong> encap\u00e7alant la paraula i donant-li el sentit negatiu\/privatiu. Etimol\u00f2gicament doncs, l&#8217;\u00e0tom \u00e9s una part\u00edcula indivisible.<\/p>\n<p>El fil\u00f2sof grec Leucip i el seu deixeble Dem\u00f2crit d&#8217;Abdera ( 460-370 a.C.), deien que la mat\u00e8ria estava formada per petites part\u00edcules indivisibles anomenades \u00e0toms.<\/p>\n<p>La paraula &#8220;\u00e0tom&#8221; va ser reintrodu\u00efda per John Dalton a principis del segle XIX perqu\u00e8 ell creia que realment els \u00e0toms eren indivisibles.<\/p>\n<p>Ara b\u00e9, durant la segona meitat del segle XIX i principis del s.XX es van descobrir les part\u00edcules subat\u00f2miques (els electrons, els protons i els neutrons). Aix\u00ed doncs, \u00a0l&#8217;\u00e0tom ja no \u00e9s &#8220;\u00e0tom&#8221; en el sentit etimol\u00f2gic de la paraula, perqu\u00e8 \u00e9s divisible.<\/p>\n<p>Curiosament en catal\u00e0 seguim utilitzant la paraula <b>&#8220;tom&#8221;<\/b> per designar cadascun dels volums d&#8217;una enciclop\u00e8dia. Un tom \u00e9s una part o \u00a0divisi\u00f3 d&#8217; una gran obra impresa per ordenar-ne el contingut.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2439\" src=\"http:\/\/agora.xtec.cat\/iesmontgri\/wp-content\/uploads\/usu613\/2016\/11\/ATOM-1.jpg\" alt=\"atom\" width=\"468\" height=\"251\" srcset=\"https:\/\/agora.xtec.cat\/iesmontgri\/wp-content\/uploads\/usu613\/2016\/11\/ATOM-1.jpg 890w, https:\/\/agora.xtec.cat\/iesmontgri\/wp-content\/uploads\/usu613\/2016\/11\/ATOM-1-300x161.jpg 300w, https:\/\/agora.xtec.cat\/iesmontgri\/wp-content\/uploads\/usu613\/2016\/11\/ATOM-1-768x412.jpg 768w\" sizes=\"auto, (max-width: 468px) 100vw, 468px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c9s l&#8217;\u00e0tom un element indivisible tal i com creien els grecs? La paraula \u00e0tom prov\u00e9 de la uni\u00f3 del mot grec \u03c4\u03bf\u03bc\u03bf\u03bd que significa part o divisi\u00f3 amb la lletra A encap\u00e7alant la paraula i donant-li el sentit negatiu\/privatiu. Etimol\u00f2gicament doncs, l&#8217;\u00e0tom \u00e9s una part\u00edcula indivisible. El fil\u00f2sof grec Leucip i el seu deixeble Dem\u00f2crit [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2436,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[106],"tags":[],"class_list":["post-2431","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-motcurios"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/posts\/2431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/comments?post=2431"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/posts\/2431\/revisions"}],"predecessor-version":[{"id":2441,"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/posts\/2431\/revisions\/2441"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/media\/2436"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/media?parent=2431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/categories?post=2431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesmontgri\/wp-json\/wp\/v2\/tags?post=2431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}