4.3 - Electron Configuration and the Periodic Table
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Practice Questions
Test your understanding with targeted questions
What is the maximum number of electrons in the second shell?
💡 Hint: Use the formula 2n², where n is the shell number.
Define valence electrons.
💡 Hint: Think about the shell with the highest energy level.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Aufbau Principle state?
💡 Hint: Think about how you'd fill a container from the bottom up.
True or False: The Pauli Exclusion Principle states that two electrons can occupy the same orbital if they have opposite spins.
💡 Hint: Consider the restrictions on electron pairing.
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Challenge Problems
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An unknown element has the electron configuration of 1s² 2s² 2p⁶ 3s² 3p³. Identify the element and discuss its reactivity.
💡 Hint: Check the group based on the number of valence electrons.
How does the electron configuration dictate the position of elements in the periodic table? Discuss the trends seen across a period and down a group.
💡 Hint: Consider how valence electrons influence reactions.
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