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The electronic configuration of Eu (Atomic no. 63) Gd (Atomic no. 64) and Tb
Chemistry
d-and ƒ-Block Elements
Question
Updated
19 Aug 2026
The electronic configuration of Eu (Atomic no. 63) Gd (Atomic no. 64) and Tb (Atomic no. 65) are:
A
Choose Your Answer
A
[Xe] 4f 6 5d 1 6s 2 , [Xe] 4f 7 5d 1 6s 2 and [Xe] 4f 8 5d 1 6s 2
B
[Xe] 4f 7 6s 2 , [Xe] 4f 7 5d 1 6s 2 and [Xe] 4f 9 6s 2
C
[Xe] 4f 7 6s 2 , [Xe] 4f 8 6s 2 and [Xe] 4f 8 5d 1 6s 2
D
[Xe] 4f 6 5d 1 6s 2 , [Xe] 4f 7 5d 1 6s 2 and [Xe] 4f 9 6s 2
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