1.

14 elements after actinium is called (A) Lanthanide (B) Actinide (C) D-block elements (D) P-block elements

Answer»

14 elements after actinium are called ‘Actinides’. These constitute the first period of f-block. They got their name from first element in the f-block, i.e., actinium.

Answer: (B) Actinides

(B) Actinide



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