Mild steel is used in construction.

Which of the following lanthanide ions do not exhibit color?

Which property of actinoids cannot be explained?

What is the general electronic configuration of d-block elements?

Which of the following has the highest density?

In lanthanides, Ce changes from +4 to +3 oxidation state.

Which of the following iswhy the atomic radii of the second and third transition series are almost same?

Which metal is used as an electroplated protective coating?