Transition elements show magnetic moment due to spin and orbital mo...

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Transition elements show magnetic moment due to spin and orbital motion of electrons. Which of the following metallic ions have almost same spin only magnetic moment?
P
(i) \( \mathrm{Co}^{2+} \)
\( \mathrm{W} \)
(ii) \( \mathrm{Cr}^{2+} \)
(iii) \( \mathrm{Mn}^{2+} \)
(iv) \( \mathrm{Cr}^{3+} \)
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