Question

What are the columns of the periodic table of the elements also called? A. rows B. series C. periods D. families 24 pointssss plssss help quick

Answer 1

Answer:

D - Families.

Explanation:

In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families.

Answer 2

Answer: Periods.

Explanation: