⚛ Chemical Bonding Simulator

Build selected ionic compounds by electron transfer and selected covalent molecules by electron sharing. The animation is a visual model of valence electrons—not a scale model of atomic size.

Ionic compound builder

The simulator balances charges automatically. It shows the smallest whole-number ratio of ions. For example, Mg²⁺ needs two Cl⁻ ions, so the formula is MgCl₂.

CationNaMgAlAnionClOSpeed

Grid 3D rotation Labels Tick sound

Choose a pair

Press “Build compound”

Stage 1: A metal atom loses valence electron(s). Stage 2: The electron(s) transfer to a non-metal atom. Stage 3: Oppositely charged ions attract. Ionic bonding is the electrostatic attraction after ions form. No quiz included.

Covalent molecule builder

Each shared pair is one covalent bond: one line = single, two lines = double, and three lines = triple. H₂ has one shared pair, O₂ has two, and N₂ has three.

MoleculeH₂O₂N₂Speed

Grid 3D rotation Labels Tick sound

Choose a molecule

Press “Share electrons”

Stage 1: Each atom displays its valence electrons. Stage 2: Electrons move toward the space between atoms. Stage 3: Shared pairs form the covalent bond.

🔴 metal/cation🔵 non-metal transferred electron shared electron