Answer to Question #86065 in Inorganic Chemistry for sheetal pandey

Question #86065
even though actinides show similar variations in magnetic properties as that of lanthanides, their magnetic properties are more complicated. explain.
1
Expert's answer
2019-03-12T15:53:44-0400

Lanthanides are associated with the filling of 4f-orbitals while actinides are engaged with the filling of 5f-orbitals. The coupling energy of 4f-electrons is nearly not as much as that of 5f-electrons. The protecting impact of 5f-electrons is less powerful when contrasted with that of 4f-electrons. 

Lanthanides are involved in the filling of 4f-orbitals whereas actinides are involved in the filling of 5f-orbitals. The binding energy of 4f-electrons is comparatively less than that of 5f-electrons. The shielding effect of 5f-electrons is less effective as compared to that of 4f-electrons.

The magnetic properties of the lanthanides are due to the electrons in the partial filled 4f shell. The magnetic properties of the first-row actinides are due to the electrons in the partial filled 5f shell.



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