Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the Aufbau principle?
💡 Hint: Think about energy levels.
Question 2
Easy
What maximum number of electrons can an s-orbital hold?
💡 Hint: Remember the 's' is the first letter in 'two'.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the Aufbau principle state?
- Electrons fill higher energy orbitals first.
- Electrons fill lower energy orbitals first.
- Electrons fill orbitals randomly.
💡 Hint: Think about energy efficiency.
Question 2
True or False: According to the Pauli Exclusion Principle, two electrons can occupy the same orbital with the same spin.
- True
- False
💡 Hint: Consider the implications of sharing in a crowded space.
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Challenge Problems
Push your limits with challenges.
Question 1
Describe the expected and actual electron configurations of copper (Cu). What is the significance of this difference?
💡 Hint: Consider stability when evaluating electron configurations.
Question 2
Given an element with the electron configuration [Xe] 6s² 4f¹⁴ 5d⁹, identify the element and justify its placement in the periodic table.
💡 Hint: Check the periodic table for d-block positioning.
Challenge and get performance evaluation