Periodic Trends

Front

What is the 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 largest atomic radius in Period 4?

Back

Potassium (K) has the largest atomic radius in Period 4.

Front

What is the trend in atomic radius as you move down a group in the periodic table?

Back

Atomic radius increases as you move down a group due to the addition of more electron shells.

Front

What is the atomic radius trend across a period from left to right?

Back

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

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

Which element has a lower ionization energy than Scandium (Sc)?

Back

Calcium (Ca) has a lower ionization energy than Scandium (Sc).

Front

What is the trend in ionization energy as you move down a group?

Back

Ionization energy decreases as you move down a group due to increased atomic size and electron shielding.

Front

What is the trend in ionization energy across a period from left to right?

Back

Ionization energy increases across a period from left to right due to increased nuclear charge.

Front

What is a group in the periodic table?

Back

A group is a vertical column in the periodic table that contains elements with similar chemical properties.

Front

What is a period in the periodic table?

Back

A period is a horizontal row in the periodic table that indicates the number of electron shells in the elements.