Podcast
Questions and Answers
What principle dictates the order in which electrons fill atomic orbitals?
What principle dictates the order in which electrons fill atomic orbitals?
Aufbau principle
According to the Pauli exclusion principle, what is the maximum number of electrons that can occupy a single atomic orbital?
According to the Pauli exclusion principle, what is the maximum number of electrons that can occupy a single atomic orbital?
Two
What does Hund's rule state about how electrons fill degenerate orbitals?
What does Hund's rule state about how electrons fill degenerate orbitals?
Electrons fill degenerate orbitals singly before pairing up.
If there are 3 electrons to fill the p orbitals, how many of those orbitals will be singly occupied?
If there are 3 electrons to fill the p orbitals, how many of those orbitals will be singly occupied?
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An atom has two electrons in a 2s orbital. What principle states these electrons must have opposite spins?
An atom has two electrons in a 2s orbital. What principle states these electrons must have opposite spins?
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Study Notes
Aufbau Principle
- Electrons first fill the lowest energy orbitals before filling higher energy orbitals.
Pauli Exclusion Principle
- Each orbital can hold a maximum of two electrons.
- These electrons must have opposite spins.
Hund's Rule
- Electrons will singly occupy degenerate orbitals (orbitals with the same energy) before pairing up.
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Description
This quiz covers fundamental principles of atomic structure, including the Aufbau Principle, Pauli Exclusion Principle, and Hund's Rule. Test your knowledge of how electrons fill atomic orbitals and the rules governing their arrangement.
