Video segment. Assistance may be required. Watch the video about periodic trends.

Source: Periodic Trends in Atomic Radius, Georectified, YouTube

Interactive exercise. Assistance may be required. Refer to the periodic table provided for you in the STAAR resources to see where the elements mentioned below are located on the table.

STAAR Chemistry Reference Materials PDF

Answer the following question in your notes.

What happens to the atomic radius as atomic number increases?

Interactive popup. Assistance may be required.

Check Your Answer

The atomic radius decreases.Close Pop Up