4.4 - Aufbau Principle, Pauli Exclusion Principle, and Hund’s Rule
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Practice Questions
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What principle states that electrons fill orbitals starting from the lowest energy level?
💡 Hint: Think of the order in which you fill layers in a structure.
What does the Pauli Exclusion Principle state?
💡 Hint: Consider how many electrons can share space in an orbital.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the order of filling orbitals according to the Aufbau Principle?
💡 Hint: Consider where the electrons would naturally settle.
True or False: An orbital can accommodate a maximum of four electrons.
💡 Hint: Think about how many dancers can occupy the same space.
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Challenge Problems
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Given an element with an atomic number of 35, write its electron configuration and discuss how it follows the Aufbau Principle.
💡 Hint: Remember to add electrons sequentially according to available orbitals.
Choose an element with unpaired electrons in its electron configuration, explain your choice referencing Hund's Rule.
💡 Hint: Check the 2p orbitals for unpaired options.
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