What are the horizontal rows of the periodic table called?

a. Periods

C. Columns

b. Groups

d. Rows

Answer: A. Periods.

Explanation: The periodic table is divided into rows and columns. The rows run across the table from one end to the other and are called periods. The columns run from the top of the periodic table to the bottom, and each is referred to as a group.

Chemistry

3 years ago

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