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      <title>ch20.2 by Anthony Frazier</title>
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      <description></description>
      <language>en-us</language>
      <pubDate>2017-04-03 16:44:32 UTC</pubDate>
      <lastBuildDate>2017-04-06 13:39:46 UTC</lastBuildDate>
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      <item>
         <title>atom</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164403905</link>
         <description><![CDATA[<div>the smallest molicule</div>]]></description>
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         <pubDate>2017-04-03 16:45:48 UTC</pubDate>
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      <item>
         <title>nucleus</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164403941</link>
         <description><![CDATA[<div>the central and most important part of an object</div>]]></description>
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         <pubDate>2017-04-03 16:45:53 UTC</pubDate>
         <guid>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164403941</guid>
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      <item>
         <title>electron</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404025</link>
         <description><![CDATA[<div>a stable subatomic particle</div>]]></description>
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         <pubDate>2017-04-03 16:46:08 UTC</pubDate>
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         <title>electron cloud</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404106</link>
         <description><![CDATA[<div> It is used to describe where the electrons are</div>]]></description>
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         <pubDate>2017-04-03 16:46:22 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404186</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-04-03 16:46:34 UTC</pubDate>
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      </item>
      <item>
         <title>nuetron</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404237</link>
         <description><![CDATA[<div>no net electric charge and a mass slightly larger than that of a proton. Protons and neutrons</div>]]></description>
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         <pubDate>2017-04-03 16:46:42 UTC</pubDate>
         <guid>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404237</guid>
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      <item>
         <title>istope</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404364</link>
         <description><![CDATA[<div>each of two or more forms of the same element that contain equal numbers of protons but different numbers</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-04-03 16:46:57 UTC</pubDate>
         <guid>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404364</guid>
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      <item>
         <title>atomic mass unit</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404445</link>
         <description><![CDATA[<div>a unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-04-03 16:47:11 UTC</pubDate>
         <guid>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404445</guid>
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      <item>
         <title>atomic mass</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404582</link>
         <description><![CDATA[<div>the mass of an atom of a chemical element expressed in atomic mass units</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-04-03 16:47:32 UTC</pubDate>
         <guid>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404582</guid>
      </item>
      <item>
         <title>mass number</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404906</link>
         <description><![CDATA[<div>the total number of protons and neutrons in a nucleus.</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-04-03 16:48:07 UTC</pubDate>
         <guid>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164404906</guid>
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         <title>atomic number</title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164405106</link>
         <description><![CDATA[<div>the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-04-03 16:48:43 UTC</pubDate>
         <guid>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164405106</guid>
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      <item>
         <title></title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164405447</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-04-03 16:49:30 UTC</pubDate>
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      <item>
         <title></title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164405789</link>
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         <pubDate>2017-04-03 16:50:16 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164406331</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-04-03 16:51:24 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164410027</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-04-03 17:01:22 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
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         <pubDate>2017-04-03 17:02:15 UTC</pubDate>
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      <item>
         <title></title>
         <author>2019anthony00</author>
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         <pubDate>2017-04-03 17:02:44 UTC</pubDate>
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      <item>
         <title></title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164410753</link>
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         <pubDate>2017-04-03 17:03:23 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
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         <pubDate>2017-04-03 17:04:41 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
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         <pubDate>2017-04-03 17:05:03 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164412475</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-04-03 17:08:08 UTC</pubDate>
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         <title></title>
         <author>2019anthony00</author>
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         <description><![CDATA[]]></description>
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         <pubDate>2017-04-03 17:08:41 UTC</pubDate>
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         <title>proton </title>
         <author>2019anthony00</author>
         <link>https://padlet.com/2019anthony00/ywpk9tdg6x62/wish/164666395</link>
         <description><![CDATA[<div>a postive or negtive elementary charge<br><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-04-04 16:33:05 UTC</pubDate>
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