Question

What is meant by diamagnetic and paramagnetic metal? Give one example of diamagnetic and paramagnetic transition metal and lanthanoid metal.

Answer 1

1. Paramagnetic substances : 

When a magnetic field is applied, substances which are attracted towards the applied magnetic field are called paramagnetic substances. 

Example : Ni²⁺, Pr⁴⁺

2. Diamagnetic substances : 

When a magnetic field is applied, substances which are repelled by the magnetic fields are called diamagnetic substances. 

Example : Zn²⁺, La³⁺

3. Ferromagnetic substances : 

When a magnetic field is applied, substances which are attracted very strongly are called ferromagnetic substances. These substances can be magnetised. 

For example, Fe, Co, Ni are ferromagnetic.