Uses: fundamental structure
Alternate Representations:

Definition of Polyhedral Representation:

The 4-tetrahedrons with yellow pom-poms represent the phosphorus atoms.
The 2-prong, "modified" from 4-prong, connectors represent the bridging oxygen atoms (modified means that two, adjacent prongs are removed, making the connector a bridging atom).
4 tetrahedrons with yellow pom-poms
6 2-prong, "modified" from 4-prong, connectors
Place one of the "modified" 4-prong connectors into the hole in three of the four vertices of one of the tetrahedrons. Now connect the remaining tetrahedrons to the first using the "modified" 4-prong connectors. Now use the remaining "modified" 4-prong connectors to make connections between the tetrahedrons.
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