Question:
Which element among the following is ferromagnetic?
Which element among the following is ferromagnetic?
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Remember the three common ferromagnetic elements at room temperature: Iron (Fe), Cobalt (Co), Nickel (Ni).
Updated On: Jun 4, 2026
- Ni
- Cu
- Sc
- Zn
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question:
We need to identify which element exhibits ferromagnetism.
Step 2: Key Formula or Approach:
Ferromagnetism occurs in certain transition metals (Fe, Co, Ni) and some rare earths due to unpaired electrons and parallel alignment of magnetic moments.
Step 3: Detailed Explanation:
- (A) Ni (Nickel): Ferromagnetic metal (Curie temperature ~ 627 K).
- (B) Cu (Copper): Diamagnetic (no unpaired electrons in its ground state).
- (C) Sc (Scandium): Paramagnetic (one unpaired electron in 3d¹) but not ferromagnetic.
- (D) Zn (Zinc): Diamagnetic (filled d¹⁰ configuration).
Step 4: Final Answer:
The ferromagnetic element is Ni, option (A).
We need to identify which element exhibits ferromagnetism.
Step 2: Key Formula or Approach:
Ferromagnetism occurs in certain transition metals (Fe, Co, Ni) and some rare earths due to unpaired electrons and parallel alignment of magnetic moments.
Step 3: Detailed Explanation:
- (A) Ni (Nickel): Ferromagnetic metal (Curie temperature ~ 627 K).
- (B) Cu (Copper): Diamagnetic (no unpaired electrons in its ground state).
- (C) Sc (Scandium): Paramagnetic (one unpaired electron in 3d¹) but not ferromagnetic.
- (D) Zn (Zinc): Diamagnetic (filled d¹⁰ configuration).
Step 4: Final Answer:
The ferromagnetic element is Ni, option (A).
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