Question

Which of the following is ferromagnetic:

Hint:

Ferromagnetic materials are often transition metals with unpaired electrons that align to create a strong magnetic field. Examples include iron, cobalt, and nickel.

Answer 1

Ferromagnetism is the characteristic of materials that allows them to form permanent magnets or be attracted to magnets. Considering the provided choices:

• Zinc (Zn): This is a diamagnetic material, lacking ferromagnetic properties.
• Copper (Cu): Copper is also diamagnetic and does not display ferromagnetic behavior.
• Manganese (Mn): Pure manganese is paramagnetic, not ferromagnetic.
• Chromium (Cr): While typically antiferromagnetic at ambient temperatures, some chromium alloys can exhibit ferromagnetism.

Therefore, Chromium, especially in specific alloyed forms, is identified as ferromagnetic.