Diamagnetism is weak repulsion in a magnetic field produced by current loops in atomic orbitals. ferromagnetism is strong attraction in magnetic field produced by the alignment of neighboring unpaired spins. Paramagnetism is weak attraction in a magnetic field produced by unpaired electrons.
is weak repulsion in a magnetic field produced by current loops in atomic orbitals. ferromagnetism 
is strong attraction in magnetic field produced by the alignment of neighboring unpaired spins. Paramagnetism 
is weak attraction in a magnetic field produced by unpaired electrons.