What is the ground-state electron configuration of the Mg²⁺ ion? A)1s²2s²2p⁶3s²3p² B)1s²2s²2p³ C)1s²2s²2p⁶ D)1s²2s²2p¹ E)1s²2s²2p⁶3s²

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The ion Mg²⁺ corresponds to the cation (MgS)2+, which means that two electrons have been removed from the neutral molecule MgS. The ground-state electron configuration of Mg is 1s2 2s2 2p6, and the ground-state electron configuration of S is 1s2 2s2 2p6 3s2 3p4. Removing two electrons from the neutral molecule gives the following configuration: 1s2 2s2 2p6 3s2 3p3. The +2 charge on the cation means that two more electrons have been removed, leaving the final ground-state electron configuration of Mg²⁺ as 1s2 2s2 2p6 3s2 3p0. This corresponds to choice C.

What Is the Ground-State Electron Configuration of the Mg2+ Ion

What Is the Ground-State Electron Configuration of the Mg²⁺ Ion