Practice Aufbau Order Diagram (2.5.1) - Unit 2: Atomic Structure - IB 11 Chemistry
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Aufbau Order Diagram

Practice - Aufbau Order Diagram

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Practice Questions

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Question 1 Easy

What is the general order of filling electron orbitals based on the Aufbau principle?

💡 Hint: Try to remember it like counting stairs; start from the first step.

Question 2 Easy

What is the atypical electron configuration of chromium?

💡 Hint: Remember it’s more stable with a half-filled d subsystem.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following describes the Aufbau principle?

Electrons fill from highest to lowest energy.
Electrons fill from lowest to highest energy.
Electrons fill randomly without a specific order.

💡 Hint: Think about the energy levels of orbitals.

Question 2

Does the Pauli Exclusion Principle allow two electrons in the same orbital?

Yes
No

💡 Hint: Consider how two items can share the same locker.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You are given the atomic number of copper (Z=29). Write its electron configuration and explain any anomalies.

💡 Hint: Think about why stability in d-subshells affects positioning.

Challenge 2 Hard

Discuss how understanding the Aufbau principle can help predict the reactivity of elements.

💡 Hint: Consider the implications of full vs. partially filled outer shells.

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