Question

Name the element with smallest atomic radius

Answer 1

helium

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Answer 2

Answer:

Helium

Atomic radii vary in a predictable way across the periodic table.