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Zetta Hackett

Feb 20, 2025

Which of these ions have six d electrons in the outermost d subshell?

Which of these ions have six d electrons in the outermost d subshell?Os^2+Zn^2+Ru^2+ Tc^2+Mn2+Fe2+Y^2+Which of these ions have ten d electrons in the outmost d subshell? Zn^2+Tc^2+Fe2+Y^2+Cd^2+Lr^2+Sc^2+

2 Answers

Look up each Wikipedia entry for each element (RH panel) and knock off the outermost (s) e⁻s to give correct charge:Os^2+: [Xe] 4f^14 5d^6 ✔Zn^2+: [Ar] 3d^10Ru^2+: [Kr] 4d^6 ✔Tc^2+: [Kr] 4d^5Mn2+: [Ar] 3d^5Fe2+: [Ar] 3d^6 ✔ (Fe, Ru, and Os are in Group 8 and all give nd^6 on loss of two e⁻s)Y^2+: [Kr] 4d^1Zn^2+: [Ar] 3d^10 ✔Tc^2+: [Kr] 4d^5Fe2+: [Ar] 3d^6 Y^2+: [Kr] 4d^1Cd^2+: [Kr] 4^10 ✔Lr^2+: [Rn] 5f^14 6d^1 (lawrencium??)Sc^2+:[Ar] 3d^1... Show More
For those looking for the answer to: "Which of these ions have ONE d electron in the outermost d subshell?" The answers are:Sc^2+Y^2+(From Sapling Learning.)... Show More

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