tag:blogger.com,1999:blog-53274802108551825132024-12-18T19:20:22.241-08:00Revisando o AssuntoO melhor blog para revisar questões de vestibulares.Anonymoushttp://www.blogger.com/profile/03064871118679507293noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5327480210855182513.post-57769270519997798732018-05-12T13:00:00.000-07:002018-05-14T15:15:11.645-07:00Questões de Química: Estrutura Atômica #1<h4 style="background-color: white; margin: 0px; overflow: hidden; padding: 0px; text-align: center; text-overflow: ellipsis;">
<span style="color: #222222; font-family: "arial" , "helvetica" , sans-serif; font-size: medium;"><span style="color: #444444; font-size: x-large; white-space: nowrap;">Exercícios sobre Estrutura Atômica</span></span></h4>
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<b><span style="font-family: "arial" , "helvetica" , sans-serif;"><span style="color: #222222;">Questão 75 - </span><span style="color: #222222;">UFGD 2016</span></span></b><br />
<span style="color: #222222;"><span style="font-family: "arial" , "helvetica" , sans-serif;">Quando um átomo do elemento radioativo R emite uma partícula β dá origem ao xenônio, conforme representado a seguir.</span></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEywRoaDnaRUdMnuqYet9itHlVb0QMuYbZAGtkj1s_p-sdYGi8APPVcP4S3OUMc_8YyTcEKbJ4bKyvYa4jgwd6WlIUIdHhhSBgRBUmVGiJDcVUvPAMnJtcQ2JJBPkthlFBKZG0pO1HrHM/s1600/questao+75+ufgd.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="color: black;"><img alt="Questão 75 - UFGD 2016" border="0" data-original-height="99" data-original-width="449" height="70" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEywRoaDnaRUdMnuqYet9itHlVb0QMuYbZAGtkj1s_p-sdYGi8APPVcP4S3OUMc_8YyTcEKbJ4bKyvYa4jgwd6WlIUIdHhhSBgRBUmVGiJDcVUvPAMnJtcQ2JJBPkthlFBKZG0pO1HrHM/s320/questao+75+ufgd.PNG" title="Questão 75 - UFGD 2016" width="320" /></span></a></div>
<span style="color: #222222; font-family: "arial" , "helvetica" , sans-serif;">Analise as seguintes afirmações sobre esta reação nuclear</span><br />
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<span style="color: #222222;">I. A partícula β é constituída por apenas um elétron.</span></span><br />
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<span style="color: #222222;">II. O elemento R é o bromo.</span></span><br />
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<span style="color: #222222;">III. O número de massa A do xenônio é 131.</span></span><br />
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<span style="color: #222222;">Está correto apenas o que se afirma em</span></span><br />
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<span style="color: #222222;">a) I</span></span><br />
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<span style="color: #222222;">b) II</span></span><br />
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<span style="color: #222222;">c) I e III</span></span><br />
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<span style="color: #222222;">d) II e III</span></span><br />
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<span style="color: #222222;">e) I, II e III</span></span><br />
<span style="font-family: "arial" , "helvetica" , sans-serif;"><span style="color: #222222;"><b><br /></b></span></span>
<span style="font-family: "arial" , "helvetica" , sans-serif;"><span style="color: #222222;"><b>Questão 35 - </b></span></span><span style="color: #222222; font-family: "arial" , "helvetica" , sans-serif;"><b>FAGOC 2015</b></span><br />
<span style="color: #222222;"><span style="color: #222222; font-family: "arial" , "helvetica" , sans-serif;">Qual das moléculas a seguir possui um elemento com orbital mais energético, o</span><span style="font-family: "arial" , "helvetica" , sans-serif;"> <span style="background-color: white;">4p</span><span style="background-color: white; box-sizing: border-box; line-height: 0; outline: none !important; position: relative; top: -0.5em; vertical-align: baseline;">1</span></span><span style="color: #222222; font-family: "arial" , "helvetica" , sans-serif;">?</span></span><br />
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<span style="color: #222222; font-family: "arial" , "helvetica" , sans-serif;">a)</span><span style="font-family: "arial" , "helvetica" , sans-serif;"> </span></span><span style="font-family: "arial" , "helvetica" , sans-serif;"><span style="background-color: white;">SO</span><span style="background-color: white; bottom: -0.25em; box-sizing: border-box; line-height: 0; outline: none !important; position: relative; vertical-align: baseline;">3</span></span><br />
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<span style="color: #222222;">b) CdSe</span></span><br />
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<span style="color: #222222;">c) GaAs</span></span><br />
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<span style="color: #222222; font-family: "arial" , "helvetica" , sans-serif;">d) </span><span style="font-family: "arial" , "helvetica" , sans-serif;">Ca(OH)</span></span><span style="background-color: white; bottom: -0.25em; box-sizing: border-box; line-height: 0; outline: none !important; position: relative; vertical-align: baseline;"><span style="font-family: "arial" , "helvetica" , sans-serif;">2</span></span><br />
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<b><span style="font-family: "arial" , "helvetica" , sans-serif;"><br /></span></b>
<b><span style="font-family: "arial" , "helvetica" , sans-serif;">Questão 24 - </span></b><span style="background-color: transparent;"><span style="font-family: "arial" , "helvetica" , sans-serif;"><b>UDESC Prova Tarde 2016/1</b></span></span></div>
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<span style="font-family: "arial" , "helvetica" , sans-serif;">Na Inglaterra por volta de 1900, uma série de experimentos realizados por cientistas, como Sir Joseph John Thompson (1856-1940) e Ernest Rutherford (1871-1937), estabeleceu um modelo do átomo que serviu de base à teoria atômica. Atualmente, sabe-se que três partículas subatômicas são os constituintes de todos os átomos: próton, nêutrons e elétrons. Desta forma, o átomo constituído por 17 prótons, 18 nêutrons e 17 elétrons possui número atômico e número de massa, sequencialmente, igual a:</span></div>
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<span style="font-family: "arial" , "helvetica" , sans-serif;">a) </span><span style="font-family: "arial" , "helvetica" , sans-serif;">17 e 18 </span></div>
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<span style="font-family: "arial" , "helvetica" , sans-serif;">b) </span><span style="font-family: "arial" , "helvetica" , sans-serif;">34 e 52 </span></div>
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<span style="font-family: "arial" , "helvetica" , sans-serif;">c) </span><span style="font-family: "arial" , "helvetica" , sans-serif;">17 e 17 </span></div>
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<span style="font-family: "arial" , "helvetica" , sans-serif;">d) </span><span style="font-family: "arial" , "helvetica" , sans-serif;">17 e 35 </span></div>
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<span style="font-family: "arial" , "helvetica" , sans-serif;">e) </span><span style="font-family: "arial" , "helvetica" , sans-serif;">35 e 17 </span></div>
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