Atomic Radius and Ionization Energy - Chemistry

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

How does atomic radius change across a period?

Back

Atomic radius decreases across a period from left to right due to increased nuclear charge pulling electrons closer.

Front

How does atomic radius change down a group?

Back

Atomic radius increases down a group as additional electron shells are added.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom.

Front

How does ionization energy change across a period?

Back

Ionization energy generally increases across a period due to increased nuclear charge.

Front

How does ionization energy change down a group?

Back

Ionization energy decreases down a group because the outer electrons are further from the nucleus and experience more shielding.

Front

Which group has the smallest atomic radius?

Back

Noble Gases (Group 18) have the smallest atomic radius.

Front

Which element has the lowest ionization energy among the following: Iodine (I), Chlorine (Cl), Fluorine (F), Bromine (Br)?

Back

Chlorine (Cl) has the lowest ionization energy.

Front

What is the trend of atomic radius in the periodic table?

Back

Atomic radius decreases across a period and increases down a group.

Front

What is the trend of ionization energy in the periodic table?

Back

Ionization energy increases across a period and decreases down a group.