Periodic Trends

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.

Front

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

Back

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

Front

What trend is observed in ionization energy as you move across a period in the periodic table?

Back

Ionization energy generally increases as you move across a period due to increasing nuclear charge.

Front

What is atomic radius?

Back

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

Front

Which atom has the largest atomic radius: potassium, rubidium, francium, or cesium?

Back

Francium has the largest atomic radius.

Front

What happens to 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 energy levels.

Front

What happens to atomic radius as you move across a period in the periodic table?

Back

Atomic radius decreases as you move across a period due to increased nuclear charge pulling electrons closer.

Front

What is the reason atoms get larger as you move down the periodic table?

Back

Atoms get larger because they have more energy levels.

Front

What is the reason atoms get smaller as you move across the periodic table?

Back

Atoms get smaller because they have more protons, which increases the nuclear charge.