Congener Definition and Examples

What Is a Congener?

The noble metals may be considered congeners.
The noble metals may be considered congeners. Tomihahndorf, Creative Commons License

Congener Definition #1

A congener is a member of group of elements in the same periodic table group.

Example: Potassium and sodium are congeners of each other.


Congener Definition #2

A congener can also refer to a class of compounds with similar structures and similar chemical properties.

Example: The class of chemicals called polychlorinated biphenyls (PCBs) have over 200 congeners.