Insert a stick in each hole of a model carbon atom and mentally draw imaginary lines between the ends of the sticks.
1. What geometric figure is represented by these imaginary lines?
2. What is the approximate angle between all possible pairs of covalent bonds in the model?
3. How many symmetry planes does the carbon atom model have?
4. Use an arrow to show the location of one such threefold axis in a figure of the carbon atom model
5. How many threefold rotation axes does the model have?
6. The carbon atom model has an additional rotational axis of symmetry that is NOT threefold. Use an arrow to show the location of one of these in a figure of the carbon atom model.
7. How many-fold is the axis you drew in (6)?