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      <title>la historia de la tabla periodica  by Carlos hernandez</title>
      <link>https://padlet.com/charteag321/efw5y3hb489d</link>
      <description>por : Paul Hernandez y Carlos Hernández </description>
      <language>en-us</language>
      <pubDate>2018-10-24 00:00:09 UTC</pubDate>
      <lastBuildDate>2018-10-24 00:58:13 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>1803</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296233984</link>
         <description><![CDATA[<div>JOHN DALTON  <br>implemento unos símbolos para representar los elementos químicos , fueron 36 elementos </div>]]></description>
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         <pubDate>2018-10-24 00:06:48 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296233984</guid>
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      <item>
         <title>1813</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296234257</link>
         <description><![CDATA[<div>JÖNS JAKOB BERZELIUS<br>simplifico el el sistema de John Dalton y organizo 47 elementos utilizando las iniciales de cada uno en latín </div>]]></description>
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         <pubDate>2018-10-24 00:08:26 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296234257</guid>
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      <item>
         <title>1869</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296234713</link>
         <description><![CDATA[<div>DIMITRI MENDELEEV<br>Presenta una tabla periódica con 63 elementos organizados por masa atómica </div>]]></description>
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         <pubDate>2018-10-24 00:11:14 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296234713</guid>
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         <title>1820</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296235116</link>
         <description><![CDATA[<div>JOHANN WOLFGANG DÖBEREINER<br>Propone organizar los elementos en grupos de tres </div>]]></description>
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         <pubDate>2018-10-24 00:13:33 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296235116</guid>
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      <item>
         <title>1863</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296240711</link>
         <description><![CDATA[<div>CHANCOURTOIS<br>Relaciona los elementos en orden a una helice telurica </div>]]></description>
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         <pubDate>2018-10-24 00:45:30 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296240711</guid>
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         <title>1864</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296241170</link>
         <description><![CDATA[<div>JOHN NEWLANDS <br>re ordena los elementos en un esquema llamado las octavas de newland </div>]]></description>
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         <pubDate>2018-10-24 00:48:00 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296241170</guid>
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         <title>1914</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296241458</link>
         <description><![CDATA[<div>HENREY MOSELEY<br>re ordena la tabla de Mendeleev en base a el numero atomicoo de cada elemento </div>]]></description>
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         <pubDate>2018-10-24 00:49:28 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296241458</guid>
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      <item>
         <title>1952</title>
         <author>charteag321</author>
         <link>https://padlet.com/charteag321/efw5y3hb489d/wish/296242409</link>
         <description><![CDATA[<div>GIL CHAVERRI <br>organiza los elementos segun su numero atomico </div>]]></description>
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         <pubDate>2018-10-24 00:54:07 UTC</pubDate>
         <guid>https://padlet.com/charteag321/efw5y3hb489d/wish/296242409</guid>
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