The 'f' orbitals are half and completely filled, respectively in lanthanide ions [Given: Atomic no. Eu, 63; Sm, 62; Tm, 69; Tb, 65; Yb, 70; Dy, 66] 2+ 2+ 2+ 3+ 4+ 2+ 3+ 3+ 4+ 7 2+ 14 2+ 7 2+ 13 2+ 6 3

Question

The 'f' orbitals are half and completely filled, respectively in lanthanide ions [Given: Atomic no. Eu, 63; Sm, 62; Tm, 69; Tb, 65; Yb, 70; Dy, 66] 2+ 2+ 2+ 3+ 4+ 2+ 3+ 3+ 4+ 7 2+ 14 2+ 7 2+ 13 2+ 6 3+ 12 3+ 9 2+ 14

(A) Eu and Tm
(B) Sm and Tm
(C) Tb and Yb
(D) Dy and Yb

Prashant Kotian · Accepted Answer

Correct answer: C) TB AND YB. Electronic configuration of Tb = [Xe] 4f and for Yb = [Xe] 4f Electronic configuration of Eu = [Xe] 4f and Tm is [Xe] 4f Electronic configuration of Sm = [Xe] 4f , Tm = [Xe] 4f Electronic configuration of Dy = [Xe] 4f and Yb = [Xe] 4f

💡 Solution & Explanation

Practice 22,000+ questions like this