How do chemists predict the shapes of molecules?

• Due to the repulsion between electrons, valence electrons will be arranged as far apart from each other as possible.

• Chemists can't predict the shape of molecules, because the attractive forces between valence electrons are unpredictable.

• Due to the repulsion between electrons, valence electrons will be arranged as close to each other as possible.

• Due to the attraction between electrons, valence electrons will be arranged as close to each other as possible.