Chapter 6: Q63E (page 337)
Question:Thallium was used as a poison in the Agatha Christie mystery story “The Pale Horse.” Thallium has twopossible cationic forms, +1 and +3. The +1 compounds are the more stable. Write the electron structure of the +1cation of thallium.
Tl1+= 1s22s22p63s23p64s23d104p65s24d105p66s25d10
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Question:What additional information do we need to answer the question “Which ion has the electron configuration1s22s22p63s23p6”?
Which of the subshells described in the previous question contain degenerate orbitals? How many degenerate
orbitals are in each?
Question:Which atom would be expected to have a half-filled 4ssubshell?
Which has the lowest value for IE1: O, Po, Pb, or Ba?
Identify the atoms from the electron configurations given:
(a)\(\left( {{\bf{Ar}}} \right){\bf{4}}{{\bf{s}}^{\bf{2}}}{\bf{3}}{{\bf{d}}^{\bf{5}}}\)
(b)\(\left( {{\bf{Kr}}} \right){\bf{5}}{{\bf{s}}^{\bf{2}}}{\bf{4}}{{\bf{d}}^{{\bf{10}}}}{\bf{5}}{{\bf{p}}^{\bf{6}}}\)
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