Question

What are the sources of magnetic properties of materials?

Answer 1

Answer:

The magnetic property effected in them is in the opposite direction of the magnetic fields and thus they have a repulsive force. In diamagnetic substances, all electrons in their last shell are paired, there are no valence electrons. This is the reason that the magnetic moment of their atoms is nearly zero.

Explanation:

Materials may be classified by their response to externally applied magnetic fields as diamagnetic, paramagnetic, or ferromagnetic. These magnetic responses differ greatly in strength. Diamagnetism is a property of all materials and opposes applied magnetic fields, but is very weak.