What Is the Ground-State Electron Configuration for Cr in Cr₂O₇^2-

question 48

Multiple Choice

What is the ground-state electron configuration for Cr in Cr₂O₇^2-?

• A)[Ar] 4s¹ 3d⁵
• B)[Ar] 4s² 3d⁶
• C)[Ar] 3d⁴
• D)[Ar] 3d⁰

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