Which one of the following can form complexes?
Correct answer: B. Cr
- A. Na
- B. Cr
- C. Rb
- D. K
Explanation
Chromium (Cr) is a transition metal, therefore it forms complexes due to the difference in the electronic configuration. Chrpmium plays a role of Central Metal Atom in Complex Compounds.
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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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