Question

Which of the following has biggest covalent radius?

• A. As
• B. P
• C. S
• D. Se

Answer 1

The correct option is A As

Among the given elements the As has the biggest covalent radius because

1. "P" is above the As in the periodic table and the covalent radius increases down the group

2. S, Se both these elements are in the right of As in periodic table i.e, Se below S in group 16 and the covalent size decreases on moving left to right.

Therefore, All the facts above show As has the biggest covalent radius.