Transition elements are colored because of:
Correct answer: A. d-d transition
- A. d-d transition
- B. d-p transition
- C. p-p transition
- D. s-d transition
Explanation
Transition elements are characterized by having partially filled d-orbitals in their atoms or ions.Color in transition metal compounds arises from the absorption of specific wavelengths of light by the metal ions. This absorption is due to the d-d transitions.When a transition metal ion absorbs light, an electron in a lower energy d-orbital is excited to a higher energy d-orbital. The energy difference between these d-orbitals corresponds to the energy of the absorbed light. The color we see is the complementary color of the absorbed light.
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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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