Periodic Trends Review

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 Period 4?

Back

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

Front

Which element has the largest atomic radius in Group 18?

Back

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

Front

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

Back

Its 1 valence electron is very far from the nucleus, so little energy is needed to remove it.

Front

What is electronegativity?

Back

Electronegativity is the tendency of an atom to attract electrons in a chemical bond.

Front

What does it mean if an atom has high electronegativity?

Back

Atoms with high electronegativity hold on to their electrons more tightly.

Front

What is the trend of 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 of atomic radius as you move across a period?

Back

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

Front

What is the relationship between atomic number and ionization energy?

Back

As atomic number increases, ionization energy generally increases due to increased nuclear charge.

Front

What is the significance of valence electrons in determining chemical properties?

Back

Valence electrons determine how an atom interacts and bonds with other atoms.