Question

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?
(i) $Co ^{2+}$
(ii) $Cr ^{2+}$
(iii) $Mn ^{2+}$
(iv) $Cr ^{3+}$

• A. (i) and (iii)
• B. (i) and (iv)
• C. (ii) and (iii)
• D. (ii) and (iv)

Answer 1

Answer: (B)

Both have $3$ unpaired electrons