Question

the term periodic helps identify __________ that occur in the table, like electronegativity or atomic radii. a atomic mass b families c patterns

Explanation:

The periodic table shows trends or patterns in properties like electronegativity and atomic radii. The term "periodic" refers to these recurring patterns. Atomic mass is a property of an atom and families are groups of elements with similar properties, but neither is what "periodic" directly identifies.

Answer:

C. patterns