GKFix MCQ Question

What is the ground state electronic configuration of Dysprosium (Dy, Z=66)?

• A. [Xe] 4f⁹ 6s²
• B. [Xe] 4f¹⁰ 6s²
• C. [Xe] 4f¹¹ 6s²
• D. [Xe] 4f¹⁰ 5d¹ 6s¹