Question

what appears to be the trend in atomic radius as you move down a group? increasing decreasing remains the same

Explanation:

In the periodic table, as you move down a group (vertical column), each element has an additional electron shell compared to the one above it. For example, in Group 1 (alkali metals), lithium has 2 electron shells, sodium has 3, potassium has 4, etc. The addition of these electron shells increases the distance between the nucleus and the outermost electrons, which leads to an increase in atomic radius. So the trend of atomic radius as you move down a group is increasing.

Answer:

A. increasing