Rank the following elements by increasing atomic radius: carbon, aluminum, oxygen, potassium. Rank the following elements by increasing atomic radius: carbon, aluminum, oxygen, potassium. @Chemistry

The trend of atomic radius in the periodic table is increasing from right to left and from top to bottom. In reference to the table, oxygen has smaller radius compared to carbon, which is smaller than aluminum and which is also smaller than potassium. Thus, the trend from smallest to biggest is oxygen carbon, aluminum and potassium.