Lewis Structure Practice

Practice level Target molecule

Current target:

Choose an element and click cells on the grid.

Elements

Selected: H

Total valence electrons

Use Single Bonds tool. Click one atom, then another.

Electrons remaining: 0

Use Add Lone Pairs tool and click atoms. Right-click to remove one pair.

Choose the next step.

Electrons remaining: 0

Drag a lone pair dot onto a connected bond to increase bond order.

Interaction Notes

1. Place atoms only in Phase 1.

2. Use Move Atoms tool to drag atoms to open grid cells.

3. Build single-bond skeleton in Phase 3.

4. Add lone pairs until remaining electrons are zero.

5. If needed, drag lone pairs to bonds to make double/triple bonds.

Grid Work Area