Question

Identify the element that has the largest atomic radius on the periodic table

Answer 1

Has the largest atomic number just after the largest noble gas, is a metal. It fits the criteria. Francium has a larger covalent and "Vander Waals" radius than Cesium, but Francium is an extremely unstable element and hence right now the prestige goes to Cesium.

Answer 2

I'm pretty sure the answer is francium. Hope this was helpful!