Stereocenters Construct a model (called Structure A) in which a carbon atom (represented by a black ball) has four different colored balls attached to it - white, green, red, blue - representing four different substituents attached to the central. # C GX N 1) Using wedges and dashes, draw this molecule on a separate sheet of paper in at least four different orientations. In each orientation that you draw, the same two atoms should NOT both be on wedges and dashes. Practice rotating the molecule in your hands and on paper, until you are comfortable with viewing molecules in three dimensions. 2) Does this molecule have a plane of symmetry? The carbon of structure A is called a stereocenter. Lounge Replace the red ball with a green one. 3) Does the model have a plane of symmetry now? Find an orientation in which it is easy to draw this plane of symmetry, then draw the molecule using wedges and dashes. Also, draw a dotted line representing the plane of symmetry