WASSCE Chemistry · Foundations & Atomic Theory
Electronic Configuration
Energy levels, sub-shells, and how to write the electron arrangement of any element up to atomic number 20.
- lessons
- 2
- of study
- 13 min
- free to read
- 1
Across the topic: 8 sections · 4 worked examples · 3 diagrams
Topic content
Lessons in this topic
2 lessons · 13 min
- 1Shells, sub-shells and orbitals7 minFree7 minFree
1 worked example · 2 diagrams
- 2Writing electron configurations: Aufbau, Pauli and Hund6 min Plan6 min Plan
- The three rules
- Orbital box diagrams
- Configurations of elements 1 to 30
- Configurations of ions
- Configuration and the periodic table
3 worked examples · 1 diagram
Learn electronic configuration step by step
Unlock both lessons on electronic configuration, plus every other WASSCE Chemistry topic, exam-style practice marked instantly and guided learning tools.
- Free account, no card needed
- Everything from 25 NLe
- No automatic renewal
More in Foundations & Atomic Theory
All Chemistry topics- 05The Periodic Table and PeriodicityGroups, periods, and trends in atomic radius, ionisation energy, electronegativity, and metallic character.1The periodic table: development, groups, periods and blocksFree2Periodic trends: size, ionisation energy and electronegativity7 min 2 lessons 14 min
- 06Chemical BondingIonic, covalent, and metallic bonding, plus dative bonds and intermolecular forces like hydrogen bonding.1Ionic, covalent and dative bondingFree2Metallic bonding, intermolecular forces and shapes of molecules8 min 2 lessons 15 min
- 01Introduction to ChemistryWhat chemistry is, branches of chemistry, physical vs chemical changes, and basic separation techniques.1What chemistry is: branches, importance and careersFree2Scientific method, measurement and laboratory safety8 min 2 lessons 15 min
- 02Particulate Nature of MatterAtoms, molecules, and ions — Dalton's atomic theory and the evidence that matter is made of particles.1Matter: particles, elements, compounds and mixturesFree2Separating mixtures and testing for purity9 min 2 lessons 16 min