KEY TAKEAWAYS •
There are specific orbitals that determine the likely place that electrons will be in an atom.
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The electronic signature will be determined by the orbitals that are filled from the lowest energy to the highest energy possible.
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The Pauli principle states that electrons in the same orbital must have opposite magnetic spins.
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The Aufbau principle allows for the building of electrons from the lowest to highest energy.
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Electron affinity is related to electronegativity and tends to increase in the upper right-hand corner of the periodic table.
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A polar molecule is one with a net positive dipole moment.
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