(a) The measured Bi¬Br bond length in bismuth tribromide,BiBr3, is 2.63 Å. Based on this value and the data in Figure 7.8,predict the atomic radius of Bi. (b) Bismuth tribromide is solublein acidic solution. It is formed by treating solid bismuth(III)oxide with aqueous hydrobromic acid. Write a balanced chemicalequation for this reaction. (c) While bismuth(III) oxideis soluble in acidic solutions, it is insoluble in basic solutionssuch as NaOH(aq). Based on these properties, is bismuth characterizedas a metallic, metalloid, or nonmetallic element?(d) Treating bismuth with fluorine gas forms BiF5. Use theelectron configuration of Bi to explain the formation of a compoundwith this formulation. (e) While it is possible to formBiF5 in the manner just described, pentahalides of bismuth arenot known for the other halogens. Explain why the pentahalidemight form with fluorine but not with the other halogens.How does the behavior of bismuth relate to the fact that xenonreacts with fluorine to form compounds but not with the otherhalogens?
(a) The measured Bi¬Br bond length in bismuth tribromide,
BiBr3, is 2.63 Å. Based on this value and the data in Figure 7.8,
predict the atomic radius of Bi. (b) Bismuth tribromide is soluble
in acidic solution. It is formed by treating solid bismuth(III)
oxide with aqueous hydrobromic acid. Write a balanced chemical
equation for this reaction. (c) While bismuth(III) oxide
is soluble in acidic solutions, it is insoluble in basic solutions
such as NaOH(aq). Based on these properties, is bismuth characterized
as a metallic, metalloid, or nonmetallic element?
(d) Treating bismuth with fluorine gas forms BiF5. Use the
electron configuration of Bi to explain the formation of a compound
with this formulation. (e) While it is possible to form
BiF5 in the manner just described, pentahalides of bismuth are
not known for the other halogens. Explain why the pentahalide
might form with fluorine but not with the other halogens.
How does the behavior of bismuth relate to the fact that xenon
reacts with fluorine to form compounds but not with the other
halogens?
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