Question

for period 2 on the periodic table which element has the smallest radius? flourine neon carbon lithium

Explanation:

Atomic radius generally decreases across a period from left - to - right due to increasing nuclear charge pulling the electrons closer. In period 2, neon is the last element. However, noble gas radii are often measured differently (van der Waals radius). Among the non - noble gas elements, fluorine has the smallest atomic radius as it has the highest effective nuclear charge among them.

Answer:

A. Fluorine