Which of the following elements is a lanthinide?
A)U
B)Pm
C)Rf
D)Po

Name: Which of the following elements is a lanthinide? A)U B)Pm C)Rf D)Po
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Question

Quizplus · Accepted Answer

The lanthanides are a series of elements in the periodic table with atomic numbers 57-71. Pm (promethium) is the only element listed that falls within this range, making it the correct answer. U (uranium) is a actinide, Rf (rutherfordium) is a transition metal, and Po (polonium) is a metalloid.

Which of the Following Elements Is a Lanthinide