Which one has the highest paramagnetism

Which one has the highest paramanetic property and which one has least paramagnetic property give reason Cu^(2+), Fe^(2+) & Cr^(5+) .

Amongst the following ions which has the highest paramagnetism?

Which has the highest paramagnetic character?

Which of the following aquated metal ions has the highest paramagnetism?

Which of the following aquated metal ions has the highest paramagnetism?