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Chapter 6: Q35 E (page 277)
Identify the subshell in which electrons with the following quantum numbers are found:
(a)n= 2,l= 1
(b)n= 4,l= 2
(c)n= 6,l= 0
(a) 2p
(b) 4d
(c) 6s
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Atoms of which group in the periodic table have a valence shell electron configuration of\({\bf{n}}{{\bf{s}}^{\bf{2}}}{\bf{n}}{{\bf{p}}^{\bf{3}}}\)?
Which atom and/or ion is (are) isoelectronic with\(\begin{aligned}{{}{}}{{\bf{B}}{{\bf{r}}^ + }:{\rm{ }}{\bf{S}}{{\bf{e}}^{{\bf{2}} + }},{\rm{ }}{\bf{Se}},{\rm{ }}{\bf{A}}{{\bf{s}}^--},{\rm{ }}{\bf{Kr}},{\rm{ }}{\bf{G}}{{\bf{a}}^{{\bf{3}} + }},{\rm{ }}{\bf{C}}{{\bf{l}}^--}?}\\\;\end{aligned}\)
Question:Thallium was used as a poison in the Agatha Christie mystery story 鈥淭he Pale Horse.鈥� Thallium has twopossible cationic forms, +1 and +3. The +1 compounds are the more stable. Write the electron structure of the +1cation of thallium.
Question:In one area of Australia, the cattle did not thrive despite the presence of suitable forage. An investigationshowed the cause to be the absence of sufficient cobalt in the soil. Cobalt forms cations in two oxidation states, Co2+and Co3+. Write the electron structure of the two cations.
Question:Use an orbital diagram to describe the electron configuration of the valence shell of each of the following
atoms:
(a) N
(b) Si
(c) Fe
(d) Te
(e) Mo
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