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      <title>Unit 2 Vocab Menu by Danielle Dean</title>
      <link>https://padlet.com/8379277/iwkeuxfuzoaa</link>
      <description>Chemistry unit 2 </description>
      <language>en-us</language>
      <pubDate>2017-10-02 12:36:45 UTC</pubDate>
      <lastBuildDate>2025-12-07 11:55:02 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>Actinides</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192956594</link>
         <description><![CDATA[<div><em>Any of the series of elements with increasing atomic numbers that begins with actinium or thorium and ends with lawrencium.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 12:43:37 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192956594</guid>
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      <item>
         <title> Alkali metals</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192960215</link>
         <description><![CDATA[<div><em>Any of the monovalent mostly basic metals of group I of the periodic table comprising lithium, sodium, potassium, rubidium, cesium, and francium.&nbsp;</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 12:50:35 UTC</pubDate>
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      <item>
         <title>Akaline-earth metals</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192961221</link>
         <description><![CDATA[<div><em>Any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 12:52:38 UTC</pubDate>
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      <item>
         <title>Anion</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192962539</link>
         <description><![CDATA[<div><em>The ion in an electrolyzed solution that migrates to the anode.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 12:55:29 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192962539</guid>
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      <item>
         <title>Atomic mass</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192962988</link>
         <description><![CDATA[<div><em>The mass of an atom usually expressed in atomic mass units.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 12:56:34 UTC</pubDate>
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      <item>
         <title>Atomic number</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192963480</link>
         <description><![CDATA[<div><em>An experimentally determined number characteristic of a chemical element that represents the number of protons in the nucleus which in a neutral atom equals the number of electrons outside the nucleus and that determines the place of the element in the periodic table.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 12:57:33 UTC</pubDate>
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      <item>
         <title> Atomic radius</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192971225</link>
         <description><![CDATA[<div><em>Is generally stated as being the total distance from an atom’s nucleus to the outermost orbital of electron.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 13:11:50 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192971225</guid>
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      <item>
         <title>Cation</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192976314</link>
         <description><![CDATA[<div><em>The ion in an electrolyzed solution that migrates to the cathode.</em><strong><em><br></em></strong><br></div><div><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 13:20:46 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192976314</guid>
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      <item>
         <title>Coinage metals</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192978286</link>
         <description><![CDATA[<div><em>A Group 11 element is one in the series of elements in group 11 in the periodic table, consisting of transition metals which are the traditional coinage metals of copper (Cu), silver (Ag), and gold (Au).</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 13:23:56 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192978286</guid>
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      <item>
         <title>Electronegativity</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192983557</link>
         <description><![CDATA[<div><em>Is a measure of the tendency of an atom to attract a bonding pair of electrons.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-02 13:32:36 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/192983557</guid>
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      <item>
         <title>Group</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194302811</link>
         <description><![CDATA[<div><em>&nbsp;Is a column of elements in the periodic table of the chemical elements.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-05 13:40:10 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194302811</guid>
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      <item>
         <title>Halogens</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194303535</link>
         <description><![CDATA[<div><em>Any of the five elements fluorine, chlorine, bromine, iodine, and astatine that form part of group VIIA of the periodic table and exist in the free state normally as diatomic molecules.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-05 13:41:19 UTC</pubDate>
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         <title>Ion</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194665847</link>
         <description><![CDATA[<div><em>An atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 13:14:04 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194665847</guid>
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      <item>
         <title>Ionic radius</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194666326</link>
         <description><![CDATA[<div><em>Distance from the center of an ion's nucleus to its outermost electron.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 13:15:07 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194666326</guid>
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      <item>
         <title>Ionization energy</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194709748</link>
         <description><![CDATA[<div><em>Is the energy required to remove an electron from a gaseous atom or ion.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 14:39:43 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194709748</guid>
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      <item>
         <title>Lanthanides</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194710465</link>
         <description><![CDATA[<div><em>Any of the series of fifteen metallic elements from lanthanum to lutetium in the periodic table.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 14:41:15 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194710465</guid>
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      <item>
         <title>Main block elements</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194711221</link>
         <description><![CDATA[<div><em>Are any of the chemical belonging to the S and P blocks of the periodic table.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 14:43:00 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194711221</guid>
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         <title> Metal</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194712480</link>
         <description><![CDATA[<div><em>Are elements that have luster (are shiny), conduct heat and electricity, and usually bend without breaking (malleable).&nbsp;</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 14:45:36 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194712480</guid>
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         <title> Metalloid (semimetal)</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194716300</link>
         <description><![CDATA[<div><em>A chemical element with properties intermediate between those of typical metals and nonmetals.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 14:53:13 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194716300</guid>
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      <item>
         <title>Noble Gases</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194717419</link>
         <description><![CDATA[<div><em>Any of a group of rare gases that include helium, neon, argon, krypton, xenon, and usually radon and that exhibit great stability and extremely low reaction rates.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 14:55:36 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194717419</guid>
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         <title> Nonmetal</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194718253</link>
         <description><![CDATA[<div><em>A chemical element (such as boron, carbon, or nitrogen) that lacks the characteristics of a metal.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 14:57:14 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194718253</guid>
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      <item>
         <title>Period</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194719481</link>
         <description><![CDATA[<div><em>&nbsp;Is the name given to a horizontal row of the periodic table.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 15:00:10 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194719481</guid>
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      <item>
         <title>Periodic Law</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194720222</link>
         <description><![CDATA[<div><em>A law in chemistry: the elements when arranged in the order of their atomic numbers show a periodic variation of atomic structure and of most of their properties.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 15:01:47 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194720222</guid>
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      <item>
         <title> Shielding Effect</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194720782</link>
         <description><![CDATA[<div><em>Describes the attraction between an electron and the nucleus in any atom with more than one electron shell.&nbsp;</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 15:02:46 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194720782</guid>
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      <item>
         <title> Transition Elements</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194721502</link>
         <description><![CDATA[<div><em>Any of various metallic elements (such as chromium, iron, and nickel) that have valence electrons in two shells instead of only one.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-06 15:04:10 UTC</pubDate>
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         <title></title>
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         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/194726181</link>
         <description><![CDATA[<div><a href="http://www.chem4kids.com/files/art/elem_actinide1.png">http://www.chem4kids.com/files/art/elem_actinide1.png</a></div>]]></description>
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         <pubDate>2017-10-06 15:14:31 UTC</pubDate>
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         <pubDate>2017-10-06 15:14:50 UTC</pubDate>
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         <pubDate>2017-10-06 15:15:52 UTC</pubDate>
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         <pubDate>2017-10-06 15:16:06 UTC</pubDate>
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         <pubDate>2017-10-06 15:18:26 UTC</pubDate>
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         <pubDate>2017-10-06 15:18:30 UTC</pubDate>
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         <pubDate>2017-10-06 16:07:53 UTC</pubDate>
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         <pubDate>2017-10-06 16:08:05 UTC</pubDate>
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         <pubDate>2017-10-06 16:47:12 UTC</pubDate>
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         <pubDate>2017-10-06 16:49:42 UTC</pubDate>
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         <pubDate>2017-10-06 16:50:43 UTC</pubDate>
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         <pubDate>2017-10-06 16:52:44 UTC</pubDate>
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         <pubDate>2017-10-06 16:56:24 UTC</pubDate>
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         <pubDate>2017-10-08 01:19:26 UTC</pubDate>
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         <description><![CDATA[<div>States that it is impossible to know simultaneously the exact position and momentum of a particle. That is, the more exactly the position is determined, the less known the momentum, and vice versa.</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:35:24 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237299</guid>
      </item>
      <item>
         <title>Quantum Mechanical model of atom</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237343</link>
         <description><![CDATA[<div>In the Bohr&nbsp;model, the neutrons and protons are contained in a small, dense nucleus, which the electrons orbit in defined spherical orbits.&nbsp;</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:36:07 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237343</guid>
      </item>
      <item>
         <title>Atomic orbital</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237359</link>
         <description><![CDATA[<div>Are regions of space around the nucleus of an a where an electron is likely to be found. </div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:36:24 UTC</pubDate>
         <guid>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237359</guid>
      </item>
      <item>
         <title>Principal quantum number </title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237369</link>
         <description><![CDATA[<div>An integer associated with the energy of an atomic electron in any one of its possible stationary states and including both the azimuthal and the radial quantum number</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:36:35 UTC</pubDate>
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      </item>
      <item>
         <title>Principal energy level</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237380</link>
         <description><![CDATA[<div>Denoted by the principal quantum number n. The first element in a period of the periodic table introduces a new principal energy level.</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:36:59 UTC</pubDate>
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      </item>
      <item>
         <title>Energy sublevel</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237386</link>
         <description><![CDATA[<div><em>A sublevel is an energy level defined by quantum theory.&nbsp;</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:37:14 UTC</pubDate>
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      </item>
      <item>
         <title>Electron Configuration</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237392</link>
         <description><![CDATA[<div><em>&nbsp;Is the distribution of electrons of an atom or molecule(or other physical structure) in atomic or molecular</em><a href="https://en.wikipedia.org/wiki/Molecular_orbital"><em> </em></a><em>orbitals.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:37:24 UTC</pubDate>
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      </item>
      <item>
         <title>Aulfbau Principle</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237402</link>
         <description><![CDATA[<div><em>States that in the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:37:37 UTC</pubDate>
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      </item>
      <item>
         <title>Pauli Exclusion Principle </title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237411</link>
         <description><![CDATA[<div><em>Says that every electron must be in its own unique state. In other words, no electrons in an atom are permitted to have an identical set of quantum numbers.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:37:57 UTC</pubDate>
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      </item>
      <item>
         <title>Hund&#39;s rule</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237437</link>
         <description><![CDATA[<div><em>States that the lowest energy electron configuration, the ground state, in any electron</em><a href="https://www.chemicool.com/definition/sublevel.html"><em> </em></a><em>subshell is the one with the greatest number of parallel electron spins.</em><strong><br></strong><br></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:38:38 UTC</pubDate>
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      </item>
      <item>
         <title>Valence Electron</title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237446</link>
         <description><![CDATA[<div>A<em>n electron of an atom, located in the outermost shell Valence electron</em><strong><em> </em></strong><em>of the atom, that can be transferred to or shared with another atom.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:38:48 UTC</pubDate>
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      </item>
      <item>
         <title>Electron-dot structure </title>
         <author>8379277</author>
         <link>https://padlet.com/8379277/iwkeuxfuzoaa/wish/199237456</link>
         <description><![CDATA[<div><em>Are diagrams that show the bonding between atoms of a molecule and the lone pairs of&nbsp;electrons that may exist in the molecule.</em></div>]]></description>
         <enclosure url="" />
         <pubDate>2017-10-21 03:39:06 UTC</pubDate>
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      </item>
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         <title></title>
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         <pubDate>2017-10-22 03:33:28 UTC</pubDate>
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         <title></title>
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         <pubDate>2017-10-22 03:34:09 UTC</pubDate>
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         <pubDate>2017-10-22 04:10:39 UTC</pubDate>
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         <pubDate>2017-10-22 04:10:56 UTC</pubDate>
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         <pubDate>2017-10-22 04:11:49 UTC</pubDate>
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