Which of the following is typical transition element?
Correct answer: C. Cu
- A. Zn
- B. Cd
- C. Cu
- D. Hg
Explanation
A typical transition element cation must have a partially filled 3d subshell. This is true for Cu as Cu2+ has 3d9 configuration. Also typical transition elements are the transition elements that belong to group 1B, 4B, 5B, 6B, 7B, and 8B. Zn belongs to group 2B, so it is a non-typical transition element. Hence, this option is incorrect. Cd belongs to group 2B , so it is a non-typical transition element. Hence, this option is incorrect. Hg belongs to group 2B , so it is a non- typical transition element. Hence, this option is incorrect. Cu belongs to group 1B, so it is a typical transition element, and hence, C option is the correct option.
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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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