Why does the paramagnetic nature of the 3d transition series increase till `Cr` and then decrease regularly?

Explain the following : (i) The paramagnetic character in 3d-transition series increases upto Cr and then decreases. (ii) Transition metals are very good catalyst. (iii) Transition metals form a large number of interstitial compounds.

The paramagnetic character in 3d transition series elements increases up to Mn and then decreases. Explain why.

The paramagnetic character in 3d- transition series increases up to maganese and then decreases. Give reason.

Explain the following : The paramagnetic character in 3d-transition series elements increases upto Mn and then decreases.

The paramagnetic character of first transition series increases upto manganese and then decreases. Explain .

Paramagnetic character of transition elements of 3d series increases upto Mn and then decreases with increase in atomic number. Explain.

Answer the question Explain the following (1) Why do transition metal ions possess a great tendency to form complexes? (2) The paramagnetic character in 3d-transition series elements increases up to Mn and decreases.

Why does the magnetisation of a paramagnetic salt increase on cooling?