PF Lewis Dot Structure
Not PF3 not PF4-
if you dont know dont answer

Lewis structures, also called electron-dot structures are diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that may exist in the molecule. A Lewis structure can be drawn for any covalently-bonded molecule, as well as coordination compounds.

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

dynamic equilibrium is the answer.