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Select the correct electron configurations from the list below. You can refer to the periodic table...

Select the correct electron configurations from the list below. You can refer to the periodic table for atomic numbers.

The electron configuration of Ag+ is [Kr]5s14d9.

The electron configuration of O2− is [He]2s22p6.

The electron configuration of Co is [Ar]4s23d7.

The electron configuration of Rb is [Kr]5s04d1.

The electron configuration of C is [He]2s22p2.

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