Atoms share electrons
Single, double and triple bonds represent one, two or three shared electron pairs in a Lewis bonding picture.
YOUR MOLECULAR UNIVERSE · FREE 3D LAB
Build the invisible.
Understand the world.
From the water you drink to the air you breathe, make atoms connect. Rotate molecules, investigate bonds and discover why shape changes everything.
NOW EXPLORING
Water
H₂O · Bent
INTERACTIVE 3D
↔ Drag to rotate · Tap an atom
FormulaH₂O
Molecular shapeBent
Bond angle104.5°
PolarityPolar
INSPECT AN ATOM
O · Oxygen
- Bond domains
- 2
- Lone pairs
- 2
- Electron geometry
- Tetrahedral
3D teaching model, not a molecular dynamics calculation. Preset angles are established reference approximations; custom layouts are illustrative. Atom sizes and bond distances are not to scale.
THE BIG IDEA · SAME ATOMS, DIFFERENT SHAPES
Why does shape matter?
A double bond counts as one electron domain. Lone pairs take up space too. Look at two molecules side by side.
CHEMISTRY YOU CAN SEE
From an atom to an explanation.
Electron regions repel
VSEPR predicts general shapes by arranging bonding domains and lone pairs around a central atom.
Shape affects properties
Molecular symmetry influences whether bond dipoles cancel. Actual properties also depend on the bonding and environment.