Problem: Based on the magnetic susceptibility values shown here,match each substances to the illustration that best represents the orientation of its net electron spins in the absence of an external magnetic field.Diamagnetic substances contain no net electron spin and are repelled from a magnetic field. Paramagnetic substances contain one or more unpaired electrons and are attracted to a magnetic field. Some paramagnetic substances can be further classified as ferromagnetic, which means they retain their magnetism in the absence of an external field.

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We're being asked to match each substance to the illustration that best represents the orientation of its net electron spins in the absence of an external magnetic field.

Recall:

Diamagnetic substances → a small, negative mass-magnetic-susceptibility value indicates weak repulsion from a magnetic field.

Paramagnetic substances → a large, positive mass-magnetic susceptibility value indicates a strong attraction to a magnetic field.

Ferromagnetic substances → a very large, positive mass-magnetic susceptibility value indicates a strong attraction to a magnetic field.

• If the mass-magnetic-susceptibility value for a substance is greater than 1000 m3 / kg, then that paramagnetic substance is likely to be ferromagnetic as well.


A circle with a single arrow represents an atom with unpaired electrons.

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Problem Details

Based on the magnetic susceptibility values shown here,

match each substances to the illustration that best represents the orientation of its net electron spins in the absence of an external magnetic field.


Diamagnetic substances contain no net electron spin and are repelled from a magnetic field. Paramagnetic substances contain one or more unpaired electrons and are attracted to a magnetic field. Some paramagnetic substances can be further classified as ferromagnetic, which means they retain their magnetism in the absence of an external field.

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