Based on your description, the diagram appears to illustrate molecules where smaller atoms (represented by white balls) are connected to a larger central atom (represented by the red ball). The green lines indicating connections or interactions suggest that the bonds are likely not the classical ionic or metallic types.
In the context of molecular structures, these configurations and the nature of the "waves of green lines" could imply a connectivity that is characteristic of covalent bonds, where atoms share electrons.
Therefore, the correct response would be:
covalent bonds