Electron configuration rules

This module covers the three core rules that govern how electrons arrange into atomic orbitals. You will learn what each rule states, how to identify viol…

📖Study Guide

In-depth bilingual notes with worked past paper examples.

✍️Practice Exam

Original questions for this topic: MCQ + FRQ + Application + drag/match.

🎴Flashcards

20+ flashcards: definitions / formulas / pitfalls. Click to flip.

📊Exam Insight Coming Soon

How this topic is distributed across past papers — data that shows what matters.

📊 Which Chemistry SL topics are most tested? See the real past-paper frequency →

Stuck on a specific question?
Snap a photo or paste your problem — Ollie (our AI tutor) walks through it step-by-step with diagrams.
Try Ollie free →