GENERAL KNOWLEDGE

Detailed explanation-1: -Answer. Answer: The atom that will have a larger radius than zinc is strontium, Sr. Atomic radius is defined as the half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.

Detailed explanation-2: -Since francium is placed in group 1 at the end of the group; thus, it has the highest atomic radius while strontium and calcium are placed in group 2, and bromine is placed in group 7, that is why they posse’s low atomic radius.

Detailed explanation-3: -Smallest and Largest Atomic Radius Francium has the largest atomic size on the periodic table, and helium has the smallest atomic size.

Detailed explanation-4: -Strontium has a greater atomic radius because it is in period 5 and thus has 5 energy levels (while magnesium is in period 3 and only has 3 energy levels).