Question 1

Which of the following transition metals would you expect to have the largest atomic radius?

Accepted Answer

Ru

Question 2

What is the condensed electron configuration for the Vanadium (III) ion, $$\mathrm{V$$^{3+}$$}$$?

Accepted Answer

$$[Ar]\ 3d^2$

Question 3

Which of the following statements best explains the lanthanide contraction?

Accepted Answer

It is due to the poor shielding effect of 4f electrons, resulting in a smaller than expected atomic radius.

Question 4

Which transition metal has the highest density?

Accepted Answer

Os

Question 5

For the ion $$\mathrm{Ag^+}$$ ($$Z=47$$), what is the condensed electron configuration?

Accepted Answer

$$[Kr]\ 4d$$^{10}$$

Question 6

Which of the following atoms is paramagnetic?

Accepted Answer

Fe

Question 7

Which of the following ligands is classified as bidentate?

Accepted Answer

Ethylenediamine ($$en)$$

Question 8

What is the overall charge of the adduct when an aluminum ion ($$Al^{3+}) $$combines with 2 bromides and 1 chloride?

Accepted Answer

$$+1$$

Question 9

Which of the following is a neutral ligand?

Accepted Answer

Hydrogen sulfide ($$H_2S)$$

Question 10

What is the formula for the coordination complex created between $$[Cr(CN)_6]^{3-}$$ and $$F^-$$?

Accepted Answer

$$Na_3$$[Cr(CN)_6]$$

Question 11

Which statement about the coordination complex $$Na_2$$[$$SnCl_6$$]$$ is true?

Accepted Answer

The sodium ion represents the counterion.

Question 12

Which of the following ions has the most unpaired electrons?

Accepted Answer

Mn

Question 13

What is the product when a Nickel (III) ion combines with two bromide ions?

Accepted Answer

$$[$$NiBr_2$$]^+$$

Question 14

Which of the following best describes a polydentate ligand?

Accepted Answer

A ligand that can donate three or more pairs of electrons to the metal center.

Question 15

Which electron configuration represents a diamagnetic atom?

Accepted Answer

$$[Ar]\ 4s^2$\ 3d$$^{10}$$

Question 16

Which of the following is the correct condensed electron configuration for $$Ru ($$Ruthenium)?

Accepted Answer

$$[Kr]\ 5s^1$\ 4d^7$

Question 17

Which of the following best describes the role of ligands in coordination complexes?

Accepted Answer

Ligands act as Lewis bases and donate at least one lone pair to the metal cation.

Question 18

What is the charge of the metal cation in the adduct $$[Fe(CN)_6]^{4-}$$?

Accepted Answer

$$+2$$

Question 19

Which of the following is a real-world application of transition metal complexes?

Accepted Answer

They are used as catalysts in industrial chemical reactions, such as the Haber process for ammonia synthesis.

Transition Metals: Periodic Trends, Electron Configurations, and Coordination Chemistry

Study Guide - Practice Questions