Question:
Which of the following elements are not regarded as transition elements?
Which of the following elements are not regarded as transition elements?
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d-block elements with full d-orbitals in all common oxidation states do not qualify as transition elements.
Updated On: Jun 26, 2026
- Zn, Cd, Hg
- Cu, Zn, Hg
- Ag, Zn, Hg
- Ag, Cd, Hg
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The Correct Option is A
Solution and Explanation
Step 1: Definition of transition elements.
Transition elements are d-block elements with partially filled d-orbitals in either neutral or common oxidation states.
Step 2: Examine Zn, Cd, Hg.
These elements have full d\(^10\) configurations in their common oxidation states → not considered transition elements.
Step 3: Examine other options.
Cu, Ag have partially filled d-orbitals in some states → transition elements.
Step 4: Conclusion.
\[ \boxed{\text{Zn, Cd, Hg are not transition elements}} \]
Transition elements are d-block elements with partially filled d-orbitals in either neutral or common oxidation states.
Step 2: Examine Zn, Cd, Hg.
These elements have full d\(^10\) configurations in their common oxidation states → not considered transition elements.
Step 3: Examine other options.
Cu, Ag have partially filled d-orbitals in some states → transition elements.
Step 4: Conclusion.
\[ \boxed{\text{Zn, Cd, Hg are not transition elements}} \]
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