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Chapter 24
The Transition Elements

 
 
 
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Animation illustrating the periodic trends in atomic radii
Notes
As we move down a group in the periodic table the effective nuclear charge is essentially unchanged while the principal quantum number increases, resulting in an increase in the atomic radius. From left to right across a period the shielding by the inner electrons remains nearly constant while the number of protons in the nucleus increases, causing the atomic radii to decrease.
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Animation illustrating the periodic trend in oxidation states
Notes
Elements in group IA and group IIA have oxidation numbers of +1 and +2, respectively. The maximum oxidation state increases from left to right across the periodic table. In the first row, O and F have negative oxidation numbers. In the second row S and Cl have positive oxidation numbers when they combine with O or F. In the third row the maximum oxidation number is +7 for Mn.
24.1
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24-1
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atomic radii of the d-block elements
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atomic radii of the d-block elements
24.2
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24-2
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Positive oxidation states of the elements of the first transition series.
24.2.1UN
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p 953-1
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Color-enhanced image of magnetic domains in a ferromagnetic garnet film.
24.3
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24-3
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the phenomenon of ferromagnetism
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the phenomenon of ferromagnetism
24.4aC
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24-4
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Concentration of an ore by flotation.
24.5
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24-5
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Zone refining.
24.6
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24-6
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graph illustration zone refining
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graph illustration zone refining
24.7
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24-7
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graph showing the effect of temperature on a zinc oxide reaction
Notes
graph showing the effect of temperature on a zinc oxide reaction
24.7.1UN
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Vacuum-distilled metallic titanium sponge produced by the Kroll process.
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Vacuum-distilled metallic titanium sponge produced by the Kroll process.
24.7.2UN
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electrolytic process to produce titanium from rutile
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electrolytic process to produce titanium from rutile
24.7.3UN
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Slag formed during the smelting of copper ore.
24.7.4UN
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Waste solution from the leaching operation at a gold-mining facility in the Mojave Desert of California.
24.8
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24-8
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typical blast furnace
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typical blast furnace
24.8.1UN
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p 963-1
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molten pig iron being poured
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molten pig iron being poured
24.9
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24-9
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a basic oxygen furnace
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a basic oxygen furnace
24.9.1UN
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photo/use of titanium as in bone implant or knee replacement
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photo/use of titanium as in bone implant or knee replacement
24.9.2UN
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p 964-1a
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shiny silver buckets holding various colors of paint
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shiny silver buckets holding various colors of paint
24.10
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24-10
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Some vanadium species in solution.
24.10.1UN
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p 966-1
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chrome plating on the engine of a Harley Davidson motorcycle
Notes
chrome plating on the engine of a Harley Davidson motorcycle
24.10.2UN
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p 967-1
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chromate and dichromate ion
Notes
chromate and dichromate ion
24.11C
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24-11
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composite of 3 photos showing the decomposition of ammonium dichromate
Notes
composite of 3 photos showing the decomposition of ammonium dichromate
24.12C
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24-12
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2 beakers- blue Cr2 and green Cr3
Notes
2 beakers- blue Cr2 and green Cr3
24.13
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24-13
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standard electrode potential diagrams
Notes
standard electrode potential diagrams
24.13.2UN
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MnO2 is heated in the presence of an alkali and an oxidizing agent, a manganate salt is produced
Notes
MnO2 is heated in the presence of an alkali and an oxidizing agent, a manganate salt is produced
24.13.3UN
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oxidation state of the iron triad
Notes
oxidation state of the iron triad
24.14
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24-14
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structures of some simple carbonyls
Notes
structures of some simple carbonyls
24.14.1UN
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Copper wire and gold leaf.
24.14.3UN
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p 975-1
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an antique brass chronometer by John Harrison
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an antique brass chronometer by John Harrison
24.14.4UN
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The small magnet induces an electric current in the superconductor
24.14.5UN
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p 981-1a
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standard electrode potential diagram
Notes
standard electrode potential diagram
24.14.6UN
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p 981-1
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electrode potential diagram for vanadium
Notes
electrode potential diagram for vanadium
24.14.7UN
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graph of the function of temperature
Notes
graph of the function of temperature
p 968-1a
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p 968-1a
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Ammonium dichromate
p 968-1b
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p 968-1b
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Considerable heat and light are also evolved
p 968-1c
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p 968-1c
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The product is Cr2O3(s)
p 968-1d
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The solution on the left, containing blue Cr21(aq)
p 968-1e
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p 968-1e
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Cr21(aq) is oxidized to green Cr31(aq) by atmospheric oxygen
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The dissolution of potassium permanganate is illustrated both at the macroscopic and microscopic levels.
Notes
Dissolution of KMnO4. When an ionic substance dissolves in water the ions are solvated by water molecules. The hydrogen atoms of the water molecule, which have a partial positive charge, interact with the permanganate ion. The oxygen atom of the water molecule, which has a partial negative charge, interacts with the potassium ion. Each ion is surrounded by several water molecules.
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p 973-3
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Copper oxide reacts with carbon to form copper and carbon dioxide
Notes
Reduction of CuO. When black carbon and black copper oxide are heated together the Cu2+ ions are reduced to metallic Cu and a gas is evolved. When the gas is collected in Ca(OH)2 a white precipitate of CaCO3 is formed. The reaction which occurs involves the reduction of Cu2+ ions by carbon which is oxidized to CO2.
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p 974-3
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The reduction of Ag+ by Cu is demonstrated.
Notes
Formation of silver crystals. When a copper wire is placed in a solution of AgNO3, the Cu reduces Ag+ to metallic Ag. At the same time, Cu is oxidized to Cu2+. As the reaction progresses Ag crystals can be seen to form on the Cu wire and the solution becomes blue as a result of the formation of Cu2+ ions.
p 955-1a
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the flotation process
p 970-1
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cobalt-samarium magnet
p 974-1a
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p 974-1a
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gold plated satellite photo
Table 24.1
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Table 24.1
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Selected properties of elements of the first row transition series
Table 24.2
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Table 24.2
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Some Blast furnace reactions
Table 24.3
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Table 24.3
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Some reactions occurring in steelmaking processes
Table 24.4
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Table 24.4
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Oxidation states of vanadium species in acidic solution
Table 24.5
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Table 24.5
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some qualitative tests of Fe2+ and Fe3+
Table 24.6
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Table 24.6
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Notes
Three metal carbonyls
Table 24.7
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Table 24.7
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Some properties of copper, silver and gold
Table 24.8
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Table 24.8
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Some properties of the group 12 metals.
Table 24.9
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Table 24.9
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Some important compounds of the group 12 metals