What Is the Electron Configuration of a Ground-State Nb²⁺ Ion

question 17

Multiple Choice

What is the electron configuration of a ground-state Nb²⁺ ion?

• A) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹
• B) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶4d³
• C) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹4d²
• D) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶4d⁵
• E) 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d³

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