Chemistry · D and f Block Elements
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Which of the following transition metals show a 3d5 configuration in their +2 oxidation state?
- A
Cu+2
- B
Fe+2
- C
Mn+2
- D
Zn+2
Mn²⁺: Manganese in the +2 oxidation state has an electron configuration of [Ar] 3d⁵, which is a half-filled d-subshell, making it stable.
Cu²⁺: Copper in the +2 oxidation state has the electron configuration [Ar] 3d⁹. It does not show a 3d⁵ configuration.
Fe²⁺: Iron in the +2 oxidation state has the electron configuration [Ar] 3d⁶. It does not show a 3d⁵ configuration.
Mn²⁺: Manganese in the +2 oxidation state has an electron configuration of [Ar] 3d⁵, which is a half-filled d-subshell, making it stable.
Zn²⁺: Zinc in the +2 oxidation state has the electron configuration [Ar] 3d¹⁰, meaning it does not have a 3d⁵ configuration.
Tagged under Chemistry · D and f Block Elements · 2023