Respuesta :
PF3 is phosphorustrifluoride with p in the center and three f bonding with it.PF5 is phosphoruspentafluoride with p in the middle and 5 f linking to bond
Explanation:
The phosphorus trifluoride ([tex]PF_3[/tex]) has a piramidal geometry as can be seen in the First figure with the three F bonded to the P.
The phosphorus pentafluoride ([tex]PF_5[/tex]) has a bipiramidal geometry as can be seen in the Second figure with all the F bonded to the P.

