Periodic Trends Practice

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 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 more electron shells.

Front

Why does atomic radius decrease as you move from left to right across a period?

Back

Atomic radius decreases from left to right because the number of protons increases, leading to a stronger attraction between the nucleus and electrons.

Front

What is a Lewis dot diagram?

Back

A Lewis dot diagram is a representation of an atom that shows its valence electrons as dots around the element's symbol.

Front

Which element is represented by the Lewis dot diagram with 6 valence electrons?

Back

Oxygen (O) is represented by a Lewis dot diagram with 6 valence electrons.

Front

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

Back

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

Front

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

Back

Electronegativity generally decreases as you move down a group in the periodic table.

Front

Define ionization energy.

Back

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

Front

What is the relationship between atomic radius and ionization energy?

Back

Generally, as atomic radius increases, ionization energy decreases because the outer electrons are further from the nucleus.