ChemistryEasy158×since 2002Q828The 'f' orbitals are half and completely filled, respectively in lanthanide ions : [Given : Atomic no. Eu, 63; Sm, 62; Tm, 69; Tb, 65; Yb, 70; Dy, 66]AEu²⁺ and Tm²⁺BSm²⁺ and Tm³⁺CTb⁴⁺ and Yb²⁺DDy³⁺ and Yb³⁺Check answerSkip