5) Atomic Radius in the Periodic Table

What is atomic radius?

the geometric size of the atoms

What is the geometric size of atoms defined as?

atomic radius

Elements have both more protons and more electrons as you move where on the periodic table?

down a column or right along a row

As you move down a column or right along a row on the periodic table, elements have _.

both more protons and more electrons

As you move down the table,

the electrons occupy discretely higher energy levels

Electrons occupy discretely higher energy levels as you move

down the table

Atomic radius tends to decrease as you move to the

right

What happens as you move to the right on the periodic table?

atomic radius tends to decrease

Why does the atomic radius tend to decrease as you move to the right on the periodic table?

the increasing positive charge of the nuclei pulls inwardly on the electrons of that energy level

The increasing positive charge of the nuclei pulls inwardly on the electrons of that energy level, which is why

the atomic radius tends to decrease as you move to the right on the periodic table

Why does atomic radius tend to increase as you move down the periodic table?

because even though you are adding positively charged protons to the nucleus, you are now adding electrons further away from the nucleus on added shells