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What Is the Electron Configuration for the Co²⁺ Ion

Question 144

Question 144

Multiple Choice

What is the electron configuration for the Co²⁺ ion?

A) [Ar]4s¹3d⁶
B) [Ar]3d⁷
C) [Ar]3d⁵
D) [Ar]4s²3d⁹
E) [Ne]3s²3p¹⁰

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