Question

the electronic configration of gadolium(Atomic number 64)is
(A)[Xe]4f^3 5d^5 6S^2
(B)[Xe]4f^7 5d^2 6s^1
(C)[Xe]4f^7 5f^1 6s^2
(D)[Xe]4f^8 5d^6 6s^2​

Answer 1

Option [C] is correct.