Question

The element with maximum atomic radius in the second period ______.

Answer 1

• The element's atomic radius is half of the distance between nucleus and electron in the valence shell.
• Atomic radii decrease across the period and increase down the group.
• In the second period, Lithium (Li) is the first element.
• So the first element has a maximum atomic radius compared to the last element [Neon(Ne)] in the same period.
• Hence, Lithium (Li) has a maximum atomic radius in the second period.