Lanthanum is grouped with f-block elements because

JEE Main Chemistry question

Lanthanum is grouped with -block elements because

(A)It has partially filled -orbitals
(B)It has both partially filled and -orbitals
(C)The properties of lanthanum are very similar to the elements of -blockCorrect
(D)It is just before Ce in the Periodic Table

Answer: (C)

Lanthanum itself has the configuration (no electrons), but because its chemical properties closely

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Question ID VK-147440