# Molecular Representations --- > [!abstract] Molecular Representations > - Bond Line Drawings > - Lewis Dot Structures > --- > - Fischer Projections > - Haworth Projections > - Ball and Stick (Molecular Kit) > - Newman Projections ## Lewis Dot Structures > The **central atom** is typically the atom with the lowest subscript (quantity) in the molecular formula and the atom that can form the most bonds. In cases where all atoms form similar amounts of bonds, its common for the central atom to be whichever is the least electronegative. A **kekule** structure is similar to ### Drawing Covalent Bonds For covalent molecules, add all of the atoms' electrons together then "spend" them on the lone pairs or bonds until all electrons are used. "Generally you will put the least electro-negative atom in the middle of the Lewis Dot Structure (with the exception of hydrogen)" > Hydrogen only wands $2e^-$ ## Skeletal Structures/Bond Line Bond line drawings are a type of The lines within a bond-line drawing should represent the angle of the bonds within the molecule