Select the options below that are correct for diamagnetism and paramagnetism.

A) Most elements and some compounds are paramagnetic.

B) Individual magnetic moments in paramagnetic substances cancel each other.

C) Diamagnetism is observed as repulsion in a magnetic field.

D)Diamagnetic properties are due to the presence of some unpaired electrons.

E) Most compounds and some elements are diamagnetic.

F) Diamagnetism is observable in substances with a symmetric electronic structure.

C and E are true.

I got the answer wrong when I chose C and E. Are any others correct? Im struggling with this question.

http://en.wikipedia.org/wiki/Diamagnetism

http://en.wikipedia.org/wiki/Paramagnetism

A, C, E, and F are true

To determine which options are correct for diamagnetism and paramagnetism, let's analyze each statement:

A) Most elements and some compounds are paramagnetic.
This statement is correct. Paramagnetic substances have unpaired electrons, which create magnetic moments, and this is observed in many elements and some compounds.

B) Individual magnetic moments in paramagnetic substances cancel each other.
This statement is incorrect. In paramagnetic substances, the individual magnetic moments do not cancel each other out. Instead, they align with an external magnetic field, resulting in a net magnetic moment.

C) Diamagnetism is observed as repulsion in a magnetic field.
This statement is correct. Diamagnetic substances are repelled by a magnetic field, causing them to have a weak negative magnetic susceptibility.

D) Diamagnetic properties are due to the presence of some unpaired electrons.
This statement is incorrect. Diamagnetic properties are not due to the presence of unpaired electrons. Instead, they arise from the orbital motion of electrons in a substance, which generates a weak induced magnetic field that opposes the applied magnetic field.

E) Most compounds and some elements are diamagnetic.
This statement is correct. Diamagnetic substances include most compounds and some elements. Diamagnetism is a universal property but tends to be weak compared to paramagnetism.

F) Diamagnetism is observable in substances with a symmetric electronic structure.
This statement is correct. Diamagnetic substances usually have a symmetric electronic structure in the absence of unpaired electrons. The symmetric distribution of electrons in orbitals helps generate the weak opposing magnetic field.

Therefore, the correct options for diamagnetism and paramagnetism are A) Most elements and some compounds are paramagnetic, C) Diamagnetism is observed as repulsion in a magnetic field, and E) Most compounds and some elements are diamagnetic.