Final answer:
Sulfur (S) has an atomic radius that is greater than its ionic radius.
Step-by-step explanation:
The element that has an atomic radius that is greater than its ionic radius is Sulfur (S).
When Sulfur forms an anion (S²⁻), it gains two electrons, resulting in an increased electron-electron repulsion and a larger ionic radius compared to its atomic radius.
For example, the atomic radius of Sulfur is approximately 88 pm, while the ionic radius of Sulfur as an anion is approximately 184 pm.