Question

Which of the following would have the largest atomic radius?
S2-
O
S
O2-

Answer 1

S2-

Step-by-step explanation:

Using the table attached, you can see that the trend shows that S has a larger atomic radius than O.

S2− has a larger radius than the neutral S atom. When an atom gains one or more electrons, forming an anion, the added electron(s) increase the shielding effect between the outermost electrons and the atomic nucleus.