13.1 First-row d-block elements

Describe the bond formation when urea acts as a ligand in a transition metal complex ion.

Describe the bond formation when urea acts as a ligand in a transition metal complex ion.

Describe the bond formation when urea acts as a ligand in a transition metal complex ion.

Explain why transition metals exhibit variable oxidation states in contrast to alkali metals.

Explain why transition metals exhibit variable oxidation states in contrast to alkali metals.

Explain why transition metals exhibit variable oxidation states in contrast to alkali metals.

State and explain the magnetic property of iron(II) and iron(III) ions.

State and explain the magnetic property of iron(II) and iron(III) ions.

State and explain the magnetic property of iron(II) and iron(III) ions.

Predict two other chemical properties you would expect rhenium to have, given its position in the periodic table.

Predict two other chemical properties you would expect rhenium to have, given its position in the periodic table.

Predict two other chemical properties you would expect rhenium to have, given its position in the periodic table.

Outline the magnetic properties of iron by referring to its electron configuration.

Outline the magnetic properties of iron by referring to its electron configuration.

Outline the magnetic properties of iron by referring to its electron configuration.

Which is correct for the complex ion in [Fe(H₂O)₅Cl]SO₄?

Which is correct for the complex ion in [Fe(H₂O)₅Cl]SO₄?

Which electrons are removed from iron (Z = 26) to form iron(II)?

A. two 3d electrons

B. two 4s electrons

C. one 4s electron and one 3d electron

D. two 4p electrons

Which electrons are removed from iron (Z = 26) to form iron(II)?

A. two 3d electrons

B. two 4s electrons

C. one 4s electron and one 3d electron

D. two 4p electrons

What is the oxidation state of the metal ion and charge of the complex ion in [Co(NH₃)₄Cl₂]Cl?

What is the oxidation state of the metal ion and charge of the complex ion in [Co(NH₃)₄Cl₂]Cl?

Which of these statements are correct?

I. Zinc is not a transition element.
II. Ligands are Lewis bases.
III. Manganese(II) chloride is paramagnetic.

A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

Which of these statements are correct?

I. Zinc is not a transition element.
II. Ligands are Lewis bases.
III. Manganese(II) chloride is paramagnetic.

A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

What is the overall charge, $x$, of the chromium (III) complex?

$\left[\mathrm{Cr}\right({\mathrm{H}}_2\mathrm{O}{)}_4{\mathrm{Cl}}_2{]}^x$

A.  0

B.  1+

C.  2−

D.  3+

What is the overall charge, $x$, of the chromium (III) complex?

$\left[\mathrm{Cr}\right({\mathrm{H}}_2\mathrm{O}{)}_4{\mathrm{Cl}}_2{]}^x$

A.  0

B.  1+

C.  2−

D.  3+

Which complex ion contains a central ion with an oxidation state of +3?

A.  [PtCl₆]²⁻

B.  [Cu(H₂O)₄(OH)₂]

C.  [Ni(NH₃)₄(H₂O)₂]²⁺

D.  [Co(NH₃)₄Cl₂]⁺

Which complex ion contains a central ion with an oxidation state of +3?

A.  [PtCl₆]²⁻

B.  [Cu(H₂O)₄(OH)₂]

C.  [Ni(NH₃)₄(H₂O)₂]²⁺

D.  [Co(NH₃)₄Cl₂]⁺

Mg(OH)⁺ is a complex ion, but Mg is not regarded as a transition metal. Contrast Mg with manganese, Mn, in terms of one characteristic chemical property of transition metals, other than complex ion formation.

Mg(OH)⁺ is a complex ion, but Mg is not regarded as a transition metal. Contrast Mg with manganese, Mn, in terms of one characteristic chemical property of transition metals, other than complex ion formation.

Mg(OH)⁺ is a complex ion, but Mg is not regarded as a transition metal. Contrast Mg with manganese, Mn, in terms of one characteristic chemical property of transition metals, other than complex ion formation.