Question

Amongst the elements B, Al, C and Si

The element having largest atomic radius is:

• A. Al
• B. B
• C. C
• D. Si

Answer 1

The correct option is A Al

Among the elements B, Al, C and Si the element having the largest atomic radius is Al.
On moving from left to right in a period, the atomic radius decreases.
On moving from top to bottom in a period, the atomic radii increases.

Hence, the correct option is $A$