24. Transition Metals and Coordination Compounds

Which of the following atoms has the most unpaired electrons? 

Write the condensed electron configuration for the nickel (III) ion and state if it is paramagnetic or diamagnetic.

Write the condensed electron configuration for the copper (I) ion and is it magnetic?

Complete the exercises below.

Which type of substance is attracted by a magnetic field, a diamagnetic substance or a paramagnetic substance?

Predict the number of unpaired electrons for each of the following.

(c) Mn3+

(d) Cr2+

What is the electron configuration of Co²⁺ and how many unpaired electrons are in the free transition metal ion?

(a) [Ar]3d⁵4s²; 5 unpaired electrons

(b) [Ar]3d⁵4s²; 1 unpaired electron

(c) [Ar]3d⁷; 3 unpaired electrons

(d) [Ar]3d⁷; 1 unpaired electron

Predict the number of unpaired electrons for each of the following. 

(c) Zn²⁺

(d) Cr³⁺

Predict the number of unpaired electrons for each of the following. 

(a) Sc³⁺

(b) Co²⁺