The P Block Elements

is the empirical formula for phosphorus pentoxide (tetraphosphorus decaoxide). Its structure consists of a tetrahedral arrangement of four phosphorus atoms, with each phosphorus atom bonded to one terminal oxygen atom ( ) and three bridging oxygen atoms. These bridging oxygen atoms connect the phosphorus atoms, forming linkages.

To determine the number of linkages, consider the following:

* Each phosphorus atom is bonded to three bridging oxygen atoms. * Each bridging oxygen atom connects two phosphorus atoms.

Therefore, there are a total of 6 linkages in the molecule. Imagine the four Phosphorus atoms forming a tetrahedron. Each edge of the tetrahedron is bridged by an Oxygen atom, hence the six P-O-P linkages, corresponding to the six edges of the tetrahedron.

Visualizing the structure:

Each P atom is tetrahedrally coordinated. There are four terminal oxygen atoms double bonded to the four P atoms. The remaining six oxygen atoms form bridges between the P atoms.

Therefore, the number of linkages in is six.