Practice - Aufbau Principle, Pauli Exclusion Principle, and Hund’s Rule
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Practice Questions
Test your understanding with targeted questions
State the Aufbau Principle in simple terms.
💡 Hint: Think about how a building is constructed, starting from the ground.
What is one consequence of the Pauli Exclusion Principle?
💡 Hint: Remember the 'perfect pairing' concept.
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Interactive Quizzes
Quick quizzes to reinforce your learning
According to the Aufbau Principle, which orbital is filled first?
💡 Hint: Think about electrons preferring lower energy states.
True or False: The Pauli Exclusion Principle allows two electrons in the same orbital to have identical spins.
💡 Hint: Recall how electrons need to 'pair up' differently.
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Challenge Problems
Push your limits with advanced challenges
Suppose you have an element with atomic number 17. Write down its electron configuration, and apply the principles discussed.
💡 Hint: Break down and fill according to the stated filling order.
How would the electron configuration differ for an ion, say Cl⁻, after gaining an electron?
💡 Hint: Think about what happens when the atom gains an electron.
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Reference links
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