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      <title>La història del àtom  by Khadija Bouaachmir Bouaachmir</title>
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      <description></description>
      <language>en-us</language>
      <pubDate>2022-04-05 08:15:15 UTC</pubDate>
      <lastBuildDate>2022-05-04 19:21:09 UTC</lastBuildDate>
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      <item>
         <title>Demòcrit</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2147958781</link>
         <description><![CDATA[<div>La primera persona que va parlar de l'àtom va ser Demòcrit.<br>Demòcrit va viure fins al s.V a.C i va ser un filòsof.<br>Demòcrit va decidir que la matèria estava formada per àtoms i que àtom en grec significa indivisible.<br>Demòcrit va dir que la matèria estava formada per minúsculs corpuscles indivisibles anomenats àtoms per això és fals perquè la matèria sí que es pot dividir.</div>]]></description>
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         <pubDate>2022-04-19 03:49:37 UTC</pubDate>
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         <title>John Dalton</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2147962049</link>
         <description><![CDATA[<div>John Dalton va fer la primera teoria atòmica:<br>John Dalton deia:</div><ul><li>Que la matèria estava formada per partícules esfèriques anomenades àtoms.</li><li>Que els àtoms d'un mateix element són idèntics.</li><li>Cada element químic està format per àtoms diferents.</li></ul><div><br></div>]]></description>
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         <pubDate>2022-04-19 03:53:03 UTC</pubDate>
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         <title>Joseph John Thomson 1904</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2148226120</link>
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         <pubDate>2022-04-19 08:08:30 UTC</pubDate>
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         <title>Experiment Joseph John Thomson </title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2148235420</link>
         <description><![CDATA[<div>Joseph John Thomson va fer un experiment del "tub de rajos catòdics".<br>Les conclusions que va treure va ser:</div><ul><li>Que els àtoms tenen una partícula amb càrrega negativa.</li><li>Que les partícules estan carregades negativament i tenen massa i volum.</li></ul><div><br><br></div>]]></description>
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         <pubDate>2022-04-19 08:17:49 UTC</pubDate>
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         <title>Model Dalton</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170426584</link>
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         <pubDate>2022-05-04 18:40:58 UTC</pubDate>
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         <title>Model Thomson</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170434803</link>
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         <pubDate>2022-05-04 18:46:38 UTC</pubDate>
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         <title>Ernest Rutherford (1911)</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170438208</link>
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         <pubDate>2022-05-04 18:49:19 UTC</pubDate>
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         <title>Experiment Ernest Rutherford</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170448100</link>
         <description><![CDATA[<div>Ernest Rutherford fa un experiment de la “làmina d’or”.</div><div>Les conclusions que va treure van ser:</div><ul><li>Que l’àtom té nucli i que la càrrega és positiva.&nbsp;</li><li>El nucli és molt petit i està format amb partícules amb càrrega positiva.&nbsp;</li><li>Va descobrir els protons.</li></ul>]]></description>
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         <pubDate>2022-05-04 18:56:51 UTC</pubDate>
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         <title>Model Rutherford</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170453417</link>
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         <pubDate>2022-05-04 19:00:55 UTC</pubDate>
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         <title>Niels Bohr</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170455796</link>
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         <pubDate>2022-05-04 19:02:43 UTC</pubDate>
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         <title>Model Bohr </title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170468432</link>
         <description><![CDATA[<div>Niels Bohr va dir:</div><ul><li>Que els electrons es mouen en unes òrbites determinades.&nbsp;</li><li>Que hi havien electrons més a prop el nucli que d’altres.</li></ul><div><br></div><div><br><br></div>]]></description>
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         <pubDate>2022-05-04 19:11:25 UTC</pubDate>
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      <item>
         <title>Model actual (s.XX i s.XXI)</title>
         <author>khadijabouaachmir</author>
         <link>https://padlet.com/khadijabouaachmir/te8mu08wgh7kz3ax/wish/2170483846</link>
         <description><![CDATA[<div>En al model actual està format:</div><ul><li>Per un nucli i que aquest nucli està format per protons positius i neutrons que no tenen cap càrrega.</li><li>Els electrons no es dibuixen perquè és impossible saber on es troben.</li><li>Els electrons es mouen en orbitals.</li></ul>]]></description>
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         <pubDate>2022-05-04 19:21:09 UTC</pubDate>
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