GACE Chemistry (712) Practice Questions - GACE Chemistry (6-12) (712) Assessment Exam

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According to Hund's rule, how should electrons fill a set of three degenerate 2p orbitals when three electrons are added?

One electron in each of the three orbitals with parallel spins Two electrons paired in one orbital and one electron in a second orbital All three electrons paired into the lowest-energy orbital One electron in one orbital and two paired in another

Correct Answer:

One electron in each of the three orbitals with parallel spins

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