Question

If the atomic radius of Chlorine is considered to be x, and that of Aluminium is considered to be y. What can you comment about the value of $\frac{x}{y}$?

• A. Greater than 1
• B. Less than 1
• C. Equal to 1
• D. Less than 0

Answer 1

The correct option is B

Less than 1

Both aluminium and chlorine appear in the 3rd period of the periodic table. The atomic radius decreases as we move from left to right of the periodic table. Since aluminium comes before chlorine in the periodic table. The ratio $\frac{x}{y}$(where x= atomic radius of chlorine and y= atomic radius of aluminium) will be a value less than 1.