Which of the following transition metal ions has five unpaired electrons in 3d sub-shell?
Correct answer: C. Mn+2
- A. Zn+2
- B. Sc+3
- C. Mn+2
- D. Cr+3
Explanation
C) Mn2+: The manganese ion (Mn2+) has five unpaired electrons in the 3d sub-shell.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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