It is the transition metal ion that binds O$_2$ in the active site.

Question 1

Which of the following is NOT a typical use of transition metals as described in the study materials?

Accepted Answer

As primary components in organic molecules

Question 2

The color of turquoise is primarily caused by the presence of which transition metal ion?

Accepted Answer

Cu$^{2+}$

Question 3

Which electron configuration correctly represents Fe$^{2+}$?

Accepted Answer

$[Ar]\ 4s^0\ 3d^6$

Question 4

Which of the following ions is incorrectly labeled regarding its magnetic properties?

Accepted Answer

Cu$^{2+}$ - diamagnetic

Question 5

What is the electron configuration for Zn$^{2+}$?

Accepted Answer

$[Ar]\ 4s^0\ 3d^{10}$

Question 6

Which statement best explains the lanthanide contraction observed in the periodic trend of atomic size for transition metals?

Accepted Answer

It results from increased nuclear charge offsetting the effect of added subshells, leading to smaller than expected atomic radii.

Question 7

Which of the following transition metal ions is expected to be diamagnetic?

Accepted Answer

Zn$^{2+}$

Question 8

A complex ion is formed when a transition metal binds to ligands. Which of the following is a correct example of a ligand?

Accepted Answer

Cl$^{-}$

Question 9

Which electron configuration correctly represents the Ti$^{4+}$ ion?

Accepted Answer

$[Ar]\ 3d^0$

Question 10

Which property is used to predict whether a transition metal ion is paramagnetic or diamagnetic?

Accepted Answer

Number of unpaired electrons

Question 11

Which of the following best describes the role of Fe$^{2+}$ in hemoglobin?

Accepted Answer

It is the transition metal ion that binds O$_2$ in the active site.

Question 12

Which of the following electron configurations is correct for Mn$^{2+}$?

Accepted Answer

$[Ar]\ 3d^5$

Question 13

Which transition metal is commonly used as a catalyst in catalytic converters?

Accepted Answer

Pt

Question 14

What is the electron configuration for Cr$^{3+}$?

Accepted Answer

$[Ar]\ 3d^3$

Question 15

Which of the following statements about transition metals is FALSE?

Accepted Answer

They are always diamagnetic.

Question 16

Which of the following best explains why atomic size remains nearly constant across the period for transition metals?

Accepted Answer

The addition of electrons to the d subshell increases shielding, offsetting the increase in nuclear charge.

Question 17

Which of the following ions would have the strongest attraction to a magnetic field?

Accepted Answer

Fe$^{3+}$

Question 18

Which of the following is a correct example of a coordination compound notation?

Accepted Answer

[Fe(CN)_6]^{4-}

Question 19

Which of the following is NOT a property of transition metals?

Accepted Answer

They have only one oxidation state.

Question 20

Which of the following ligands is classified as a polydentate ligand?

Accepted Answer

EDTA

Transition Metals and Coordination Compounds: Properties, Electron Configurations, and Periodic Trends

Study Guide - Practice Questions