Which electronic configuration can have possibility of +7 oxidation state
Correct answer: A. [Ar]3d5, 4s2
- A. [Ar]3d5, 4s2
- B. [Ar]3d6, 4s2
- C. [Ar]3d5, 4s1
- D. [Ar]3d10, 4s2
Explanation
[Ar] 3d5 4s2 is electronic configuration of Mn. It shows maximum +7 oxidation state because it belongs to group VIIB of periodic table.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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