10. Periodic Properties of the Elements

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?

In the ground-state electron configuration of Fe³⁺, how many unpaired electrons are present?

In the ground-state electron configuration of Fe³⁺, how many unpaired electrons are present?