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class="hidden-xs hidden-sm"> <button class="btn btn-default btn-block text-xs-center" data-toggle="modal" data-target="#modal-feedback" style="margin-bottom: 10px"><i class="fa fa-send"></i> Feedback</button> </div> </div> <div class="col-md-9" id="main-column"> <h1 class="page_title"> Periodicity <a href="#" class="mark-page-favorite pull-right" data-pid="356" title="Mark as favorite" onclick="return false;"><i class="fa fa-star-o"></i></a> </h1> <ol class="breadcrumb"> <li><a href="../../../chemistry.html"><i class="fa fa-home"></i> Home</a><i class="fa fa-fw fa-chevron-right divider"></i></li><li><span class="gray">Periodicity</span></li> </ol> <article id="main-article"> <p><img alt="" src="../../images/periodicity/p-block.png" style="width: 120px; height: 100px; float: left;">Periodicity examines the trends in chemical and physcial properties across and down the periodic table of elements. The trends are 'periodic', in that they repeat themselves. The periodic table of elements is arranged in order of proton number, and in accordance with our quantum mechanical model of the electronic structure of atoms.</p> <hr class="thin"><div class="row"><div class="col-md-12"><br><ul class="resources"><li class="resource-item"><div class="img-container"><img class="thumb thumb-cover" src="../../images/periodicity/copper2.jpg"></div><div class="media-body"><h4 style="font-size: 19px;"><a class="text-normal" href="../879/coloured-complexes.html">Coloured complexes</a></h4><p class="body">Topic 13.2 Exploring how colour arises in transition metal compounds.</p></div></li><li class="resource-item"><div class="img-container"><img class="thumb thumb-cover" src="../../images/periodicity/vanadiumoxidationstates.jpg"></div><div class="media-body"><h4 style="font-size: 19px;"><a class="text-normal" href="../878/first-row-d-block-elements.html">First-row d-block elements</a></h4><p class="body">Topic 13.1 Introducing the d-block elements.</p></div></li><li class="resource-item"><div class="img-container"><img class="thumb thumb-cover" src="../../images/periodicity/dalton-s_symbols_of_the_elements._1806_wellcome_m0004592.jpg"></div><div class="media-body"><h4 style="font-size: 19px;"><a class="text-normal" href="../725/periodic-table.html">Periodic table</a></h4><p class="body">Topic 3.1 The periodic table basics.</p></div></li><li class="resource-item"><div class="img-container"><img class="thumb thumb-cover" src="../../images/periodicity/trends.png"></div><div class="media-body"><h4 style="font-size: 19px;"><a class="text-normal" href="../877/periodic-trends.html">Periodic trends</a></h4><p class="body">Topic 3.2 A big section summarising many trends on the periodic table.</p></div></li></ul></div></div> <div id="modal-feedback" class="modal fade" tabindex="-1" role="dialog"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <h4 class="modal-title">Feedback</h4> <button type="button" class="close hidden-xs hidden-sm" data-dismiss="modal" aria-label="Close"> <span aria-hidden="true">×</span> </button> </div> <div class="modal-body"> <div class="errors"></div> <p><strong>Which of the following best describes your feedback?</strong></p> <form method="post" style="overflow: hidden"> <div class="form-group"> <div class="radio"><label style="color: #121212;"><input type="radio" name="feedback-type" value="Recommendation"> Recommend</label></div><div class="radio"><label style="color: #121212;"><input type="radio" name="feedback-type" value="Problem"> Report a problem</label></div><div class="radio"><label style="color: #121212;"><input type="radio" name="feedback-type" value="Improvement"> Suggest an improvement</label></div><div class="radio"><label style="color: #121212;"><input type="radio" name="feedback-type" value="Other"> Other</label></div> </div> <hr> <div class="row"> <div class="col-md-6"> <div class="form-group"> <label for="feedback-name">Name</label> <input type="text" class="form-control" name="feedback-name" placeholder="Name" value=" "> </div> </div> <div class="col-md-6"> <div class="form-group"> <label for="feedback-email">Email address</label> <input type="email" class="form-control" name="feedback-email" placeholder="Email" value="@airmail.cc"> </div> </div> </div> <div class="form-group"> <label for="feedback-comments">Comments</label> <textarea class="form-control" name="feedback-comments" style="resize: vertical;"></textarea> </div> <input type="hidden" name="feedback-ticket" value="082b9c9c4ae3624d"> <input type="hidden" name="feedback-url" value="https://studyib.net/chemistry/page/356/periodicity"> <input type="hidden" name="feedback-subject" value="7"> <input type="hidden" name="feedback-subject-name" value="Chemistry"> <div class="pull-left"> </div> </form> </div> <div class="modal-footer"> <button type="button" class="btn btn-primary btn-xs-block feedback-submit mb-xs-3 pull-right"> <i class="fa fa-send"></i> Send </button> <button type="button" class="btn btn-default btn-xs-block m-xs-0 pull-left" data-dismiss="modal"> Close </button> </div> </div> </div></div> <style type="text/css" media="screen">/* Important part */
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