EVERYDAY SCIENCE

Detailed explanation-1: -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: -Calcium is larger than zinc because it has fewer protons and cannot pull in the outer electrons as effectively as zinc. The radius of N3-is larger than the radius of N.

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: -As the atomic radius decreases on moving from left to right in a period, the atomic radius of rubidium is more than that of strontium.

Detailed explanation-5: -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).