Periodic Trends Practice

Front

What happens to atomic radius as you move down a group in the periodic table?

Back

Atomic radius increases because you add more and more shells (energy levels).

Front

Which element has the largest atomic radius in Group 18?

Back

Radon (Rn).

Front

What is ionization energy?

Back

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

Front

Why does atomic radius decrease as you move from left to right across the periodic table?

Back

Atomic radius decreases because the number of protons increases, leading to a stronger attraction to the electrons.

Front

Why does Francium (Fr) have the lowest ionization energy in Group 1?

Back

Francium has the lowest ionization energy because its one valence electron is very far from the nucleus, requiring little energy to remove it.

Front

What is the trend of 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 distance between the nucleus and the valence electrons.

Front

What is the trend of atomic radius as you move from left to right across a period?

Back

Atomic radius generally decreases as you move from left to right across a period.

Front

How does the effective nuclear charge affect atomic size?

Back

An increase in effective nuclear charge pulls electrons closer to the nucleus, resulting in a smaller atomic size.

Front

What is the relationship between electronegativity and atomic radius?

Back

As atomic radius decreases, electronegativity generally increases because the nucleus has a stronger pull on the bonding electrons.

Front

What is the significance of noble gases in periodic trends?

Back

Noble gases have complete valence shells, making them stable and generally unreactive, which affects trends in ionization energy and atomic radius.