Choose the term that best completes each statement.

Periodic

refers to a property or process that has an equivalence in two or more directions.

Periodic

refers to a property or process that has a consistent recurrence, or frequency, over time or space.

Periodic

refers to the characteristic of a set of objects, wherein the objects are separated in space by the same distance along a given direction.

Periodic

refers to the characteristic of an object $($or a set of objects$)$ of being made up of exactly similar parts facing each other or around an axis in space.