What is the answer for this question & explain me why---**Question:**
1. Which of the following materials is most likely to be attracted to a magnet? magnetsymbol
**Options:**
A. Plastic
B. Wood
C. Iron
D. Glass
**Other Relevant Text:**
Symbol next to question: A horseshoe magnet symbol.
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Let's examine this question about magnetic materials. We need to identify which material from the options - plastic, wood, iron, or glass - would be attracted to a magnet. The key concept here is ferromagnetism. Only ferromagnetic materials like iron, nickel, and cobalt are strongly attracted to magnets.
Ferromagnetic materials like iron have a special atomic structure. Their atoms contain unpaired electrons that act like tiny magnets. These electrons align to form magnetic domains within the material. When exposed to an external magnetic field, these domains align with the field, causing strong attraction. This is why iron is the correct answer - it's the only ferromagnetic material among the options.
Now let's test each material option. Plastic is a polymer with no unpaired electrons, so it's not attracted to magnets. Wood is an organic compound that's also non-magnetic. Glass, made of silicon dioxide, has no magnetic properties. However, iron is ferromagnetic with unpaired electrons that align with magnetic fields, creating strong attraction. Only iron shows magnetic attraction, making C the correct answer.
Iron's magnetism comes from its electron structure. Iron has 26 electrons with the configuration [Ar] 3d⁶ 4s². The key is in the 3d orbital, which contains 6 electrons. According to Hund's rule, these electrons occupy the five 3d orbitals with four unpaired electrons. These unpaired electrons create magnetic moments that can align with external magnetic fields, making iron strongly magnetic. This is why the answer is C - Iron.
To conclude, the correct answer is C - Iron. Iron is the only ferromagnetic material among the four options. While plastic, wood, and glass are all non-magnetic materials with no unpaired electrons, iron has four unpaired electrons in its 3d orbital that create magnetic domains. These domains align with external magnetic fields, causing strong attraction. This fundamental property of iron makes it the material most likely to be attracted to a magnet.