Atomic Radius Trend

Front

What is atomic radius?

Back

The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

Which element has the smallest atomic radius: Li, O, C, F?

Back

F (Fluorine) has the smallest atomic radius among these elements.

Front

How does the number of protons affect atomic radius?

Back

The more protons there are, the stronger the pull on the electrons, which generally leads to a smaller atomic radius.

Front

What is the trend of atomic radius across a period in the periodic table?

Back

Atomic radius decreases from left to right across a period due to increasing nuclear charge.

Front

What is the trend of atomic radius down a group in the periodic table?

Back

Atomic radius increases down a group due to the addition of electron shells.

Front

Which order is correct from largest to smallest atomic radius: Thallium, Indium, Gallium, Boron?

Back

Thallium, Indium, Gallium, Boron.

Front

Why do elements in the same group have similar properties?

Back

They have the same number of valence electrons, which determines their chemical behavior.

Front

Which element's atom is the smallest: Rhodium, Silver, Cadmium, Tin?

Back

Tin has the smallest atomic radius among these elements.

Front

What is the relationship between atomic number and atomic radius?

Back

As atomic number increases, atomic radius generally decreases across a period and increases down a group.

Front

Define valence electrons.

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.