Question

atomic radius
the atomic radius of elements increases moving down each group and ? across each period.
answer bank
up
left
right
increasing atomic radius

Explanation:

As you move across a period from left - to - right, the number of protons in the nucleus increases, which leads to a greater nuclear charge. This stronger positive charge pulls the electrons closer to the nucleus, causing the atomic radius to decrease. So, atomic radius decreases moving right across each period.

Answer:

RIGHT