Question

paramagnetic, diamagnetic and ferromagnetic definition and examples......?

Answer 1

if odd electrons are present then paramagnetic
eg cr+3,fe+3
if even number of electrons are present then diamagnetic eg al+3
if a substance is strongly maganatised in the direction of magnetising field then these are termed as ferromagnetic materials
eg soft iron

Answer 2

The key difference between diamagnetic, paramagnetic and ferromagnetic materials is that diamagnetic materials are not attracted to an external magnetic field, and paramagnetic materials are attracted to an external magnetic field whereas ferromagnetic materials are strongly attracted to an external magnetic field.