ChemistryEasy158×since 2002Q802Lanthanoid contraction is caused due to :Athe appreciable shielding on outer electrons by 4f electrons from the nuclear chargeBthe appreciable shielding on outer electrons by 5d electrons from the nuclear chargeCthe same effective nuclear charge from Ce to LuDthe imperfect shielding on outer electrons by 4f electrons from the nuclear chargeCheck answerSkip