1 A) 1 B) 2 C) 3 D) 4 2 A) [Kr]5s2 3d10 3f14 5p4 B) [Kr]5s2 3d10 4d14 5p4 C) [Kr]5s2 3d10 4f14 5p2 D) [Kr]5s2 4d10 5p2 3 A) An element symbol surrounded by dots representing its valence electrons. B) An element symbol surrounded by its innermost electrons. C) An element symbol with a positive charge. D) A filled noble gas in brackets plus the remaining electron configuration expressed by filled orbitals. 4 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514701/figure_5_18_page_156_2008_CMC.jpg','popWin', 'width=350,height=281,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (35.0K)</a>]]> A) The 4s orbital is lower than the 3d orbital in the aufbau diagram. B) s orbitals always fill before d orbitals. C) The 4s orbital is to the left of the 3d orbital in the diagram. D) The 4s orbital has higher energy than the 3d orbital. 5 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514701/boxes_1_through_6_showing_up_and_down_arrows_on_page_157_2008_CMC.jpg','popWin', 'width=350,height=126,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (10.0K)</a>]]> A) Electrons in orbitals must possess opposite spins. B) Single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals. C) Electrons with the same spin fill all orbitals. D) P orbitals may contain up to six electrons.
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