Chemistry Practice Problems Electron Configuration Practice Problems Solution: Which electron configuration is incorrect?a. Zn: [...

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Solution: Which electron configuration is incorrect?a. Zn: [Ar]3d 10 4s 2b. Ca: [Ar]4s 2c. Cr: [Ar]3d 4 4s 2d. Ag: [Kr]4d 10 5s 1e. All the above are correct.

Problem

Which electron configuration is incorrect?

a. Zn: [Ar]3d 10 4s 2

b. Ca: [Ar]4s 2

c. Cr: [Ar]3d 4 4s 2

d. Ag: [Kr]4d 10 5s 1

e. All the above are correct.