🎯 Goal
Build molecules by placing atoms and creating bonds to complete each level's objective.
🔬 How to Build
- Select an atom from the left panel
- Click on the canvas to place it
- Select bond type (Single, Double, Triple, or Ionic)
- Click two atoms to create a bond between them
- Check completeness - aim for 100%!
- Submit when your molecule matches the objective
⚗️ Bond Types
- ━ Single Bond: Share 1 electron pair (e.g., H-H)
- ═ Double Bond: Share 2 electron pairs (e.g., O=O)
- ≡ Triple Bond: Share 3 electron pairs (e.g., N≡N)
- ⚡ Ionic Bond: Electron transfer (e.g., Na⁺Cl⁻)
🧮 Valence Rules
- H: 1 bond
- C: 4 bonds
- N: 3 bonds
- O: 2 bonds
- Na, Cl, K: 1 ionic bond
📊 Completeness
100% Complete: All atoms have correct number of bonds
Partial: Some atoms need more bonds
Over-bonded: Too many bonds (penalty!)