GKFix MCQ Question

What is the electronic configuration of the ground state of Iridium (Ir, Z=77)?

• A. [Xe] 4f¹⁴ 5d⁶ 6s³
• B. [Xe] 4f¹⁴ 5d⁸ 6s¹
• C. [Xe] 4f¹⁴ 5d⁵ 6s⁴
• D. [Xe] 4f¹⁴ 5d⁷ 6s²