Aufbau Principle, Hund's Rule, and Pauli Exclusion Principle

Atomic Structure, Quantum Orbitals, and Periodic Trends

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Construct ground-state electron configurations and orbital spin diagrams using the Aufbau principle, Hund's rule, and the Pauli exclusion principle.

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Atomic Structure, Quantum Orbitals, and Periodic Trends

12th Grade · Science · Open Global Science

7 lessons

Goal

Explain quantum electronic configurations, orbital geometries, mass spectrometric isotopic analysis, and periodic periodicity in ionization energies and radii.

7 lessons

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Average Atomic Mass and Isotopic AbundanceUp next
Quantum Shells, Subshells, and Orbital GeometriesNot started yet
Aufbau Principle, Hund's Rule, and Pauli Exclusion PrincipleYou are here
Electron Configurations of Transition Metals and AnomaliesNot started yet
First Ionisation Energy Trends Across Periods and Down GroupsNot started yet
Successive Ionization Energies and Valence Shell IdentificationNot started yet
Analyzing Periodic Trends in Atomic and Ionic RadiiNot started yet

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Learning standards covered

OGS.13.CH.2Open Global Science Standards 2026™ · 12th Grade

Explain atomic electronic configurations, orbital geometries (s, p, d), isotopic abundance via mass spectrometry, and periodic trends in ionization energy and atomic radii across periods and down groups.