If necessary, use the periodic table to answer the following question. Click here to open the periodic table in a new tab
How many elements are in period 3 of the periodic table?

Question

Quizplus · Accepted Answer

Periods are the rows of the periodic table and are numbered increasing from top to bottom.
Period 3 contains 8 elements: sodium, magnesium, aluminum, silicon, phosphorous, sulfur, chlorine, and argon.
The columns of the periodic table are called groups.
Click here to view the periodic table with the groups and periods labeled.

If Necessary, Use the Periodic Table to Answer the Following