Question

atomic number 64 belongs to which group​

Answer 1

Explanation:

Gadolinium is a chemical element with the symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed.

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Gadolinium

Atomic number (Z) 64

Group group n/a

Period period 6

Block f-block

Answer 2

this atomic number 64 (gadolinium ) belong to block element just see this pictures