Question

how does atomic radius change from top to bottom in a group? it tends to increase it tends to decrease it first increases, then decreases it first decreases, then increases compared with the electronegativities of the elements on the left side period, the electronegativities of the elements on the right side of the s period tend to be ______.

Explanation:

As you move from top to bottom in a group of the periodic table, new electron - shells are added. Each new shell is farther from the nucleus, increasing the atomic radius. So, the atomic radius tends to increase.

Answer:

It tends to increase