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 Group 18?

Back

Radon (Rn) has the largest atomic radius in Group 18.

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 electronegativity?

Back

Electronegativity is a measure of how well an atom can attract and hold onto electrons.

Front

Which element has a greater electronegativity: Chlorine (Cl) or Aluminum (Al)?

Back

Chlorine (Cl) has a greater electronegativity than Aluminum (Al).

Front

Which periodic group has the smallest atomic radius?

Back

Noble Gases have the smallest atomic radius.

Front

What trend is observed 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 electron shells.

Front

What trend is observed in ionization energy as you move across a period from left to right?

Back

Ionization energy generally increases as you move from left to right across a period.

Front

What is the relationship between electronegativity and ionization energy?

Back

Generally, elements with high electronegativity also have high ionization energy.