❓ why
Why do refrigerator magnets stick to steel but not to aluminum?
Quick Answer
Steel contains iron, which is ferromagnetic and strongly attracted to magnets. Aluminum is not ferromagnetic, so ordinary magnets do not stick to it in the same way.
The Full Story
The key difference is atomic structure and how electrons behave in the solid. Steel, an iron-based alloy, can form magnetic domains that align with a nearby magnet and create attraction. Aluminum is only weakly paramagnetic, so its response is usually too small to notice. This is why magnets cling to a steel fridge door but not to an aluminum can or most aluminum panels.
Key Facts
1.Steel is iron-based and often ferromagnetic
2.Aluminum is only weakly paramagnetic
3.Magnetic attraction depends on electron alignment in the material
YouTube Angle
Suggested video title for this topic:
"Why does a magnet love steel but ignore aluminum?"
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