What are ferromagnetic substance?

What is a ferromagnetic substance? Give an example.

(i) What is ferromagnetic substance? (ii) KBr crystallises in face-centred cubic (fcc) crystals. The density and formula mass of KBr crystal are 2.65g*cm^(-3) and 119g*mol^(-1) respectively. Find the distance between K^(+)andBr^(-) ions in KBr crystal. or, (i) Which kind of defect in ionic crystal does not alter the density? (ii) An element X has atomic mass 60g*mol^(-1) and density 6.23g*cm^(-3) . The edge length of its unit cell is 400 pm. Identify the type of the unit cubic cell. Calculate the radius of X atom.

What are paramagnetic substances? What is the reason of paramagnetism? Give two examples of paramagnetic substance.

What is a ferrimagnetic substance? Give an example.

What is the ferromagnetic substance?

When a ferromagnetic substance is changed into paramegnetic substances?

What are diamagnetic substances? Give two examples of this substance. What causes diamagnetism in a substance?

What happens when a ferromagnetic substance is heated to high temperatures?

What happens when a ferromagnetic substance is heated at very high temperature?

Which one is not a ferromagnetic substance.