Rank these transition metal ions in order of decreasing number of unpaired electrons. a. Fe^3
b. Mn^4+
c. V3+
d. Ni^2+
e. Cu^+

The given transition metal ions in order of decreasing number of unpaired electrons are as follows.

Explanation:

In atomic orbitals, the distribution of electrons of an atom is called electronic configuration.

The electronic configuration in terms of noble gases for the given elements are as follows.

So, there is only 1 unpaired electron present in .

So, there are only 3 unpaired electrons present in .

So, there are only 2 unpaired electrons present in .

So, there will be 2 unpaired electrons present in .

So, there is no unpaired electron present in .

Therefore, given transition metal ions in order of decreasing number of unpaired electrons are as follows.

Thus, we can conclude that given transition metal ions in order of decreasing number of unpaired electrons are as follows.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §