Click to place • Shift+drag atom→atom to bond • Drag to rotate • Shift+drag empty to pan
✓ Looks correct — validating…
🎉
Correct!
Progress
0/ 0 done
Valence Reference
Controls
Place atom — click palette or canvas Bond — Shift+drag atom→atom Also bond — Bond mode, click→click Rotate — drag empty space Pan — middle-drag or Shift+drag empty Move atom — drag atom Delete — Delete mode, click target Undo/Redo — Ctrl+Z / Ctrl+Y Align ⊞ — 3D VSEPR layout Scroll — zoom