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Modern Periodic Table

How many elem...

Question

How many elements are present in lanthanides and actinides series?

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Solution

Dear Student,
The lanthanide and actinide series make up the inner transition metals. The lanthanide series includes elements 58 to 71, which fill their 4f sublevel progressively. The actinides are elements 89 to 103 and fill their 5f sublevel progressively.
Elements: Gadolinium; Lutetium; Cerium

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