Final answer:
The chemical formula PF5 consists of Phosphorus (P) and Fluorine (F) and has a trigonal bipyramidal molecular geometry.
Step-by-step explanation:
The elements in the chemical formula PF5 are Phosphorus (P) and Fluorine (F). Phosphorus is the central atom with five valence electrons, and it bonds with five fluorine atoms, each having seven valence electrons. The molecular geometry of PF5 is trigonal bipyramidal because it has five bonding pairs of electrons and no lone pairs, leading to no deviation from the ideal bond angles.