Chapter 6: Q68E (page 337)
Question:Based on their positions in the periodic table, predict which has the largest atomic radius: Li, Rb, N, F, I
Rubidium has the largest atomic radius.
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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.
Which has the lowest value for IE1: O, Po, Pb, or Ba?
Which atom and/or ion is (are) isoelectronic with\(\begin{aligned}{{}{}}{{\bf{B}}{{\bf{r}}^ + }:{\rm{ }}{\bf{S}}{{\bf{e}}^{{\bf{2}} + }},{\rm{ }}{\bf{Se}},{\rm{ }}{\bf{A}}{{\bf{s}}^--},{\rm{ }}{\bf{Kr}},{\rm{ }}{\bf{G}}{{\bf{a}}^{{\bf{3}} + }},{\rm{ }}{\bf{C}}{{\bf{l}}^--}?}\\\;\end{aligned}\)
Based on their positions in the periodic table, rank the following atoms or compounds in order of increasing first ionization energy:\({\bf{Mg}},{\rm{ }}{\bf{O}},{\rm{ }}{\bf{S}},{\rm{ }}{\bf{Si}}\).
Question:which atom has the electron configuration 1s22s22p63s23p64s23d104p65s24d2?
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