JEE Main 201910 Jan, Morning shiftChemistryEasyd- and f-Block Elements158× since 2002The effect of lanthanoid contraction in the lanthanoid series of elements by and large means :AOption A. increase in atomic radii and decrease in ionic radiiBOption B. increase in both atomic and ionic radiiCOption C. decrease in both atomic and ionic radiiDOption D. decrease in atomic radii and increase in ionic radiiCheckSkip · show solution
