5C: Periodic Trends

Which property refers to the size of an atom?

• atomic volume

• atomic weight

• atomic radius

• atomic mass

What happens to the atomic radius as you move from left to right across a period?

• The atomic radius fluctuates.

• The atomic radius remains constant.

• The atomic radius generally decreases.

• The atomic radius generally increases.

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

• The atomic radius increases.

• The atomic radius remains constant.

• The atomic radius fluctuates.

• The atomic radius decreases.

Which property refers to the tendency of an atom to attract electrons towards itself?

• electron affinity

• atomic radius

• ionization energy

• electronegativity

What happens to the electronegativity as you move from left to right across a period?

• The electronegativity decreases.

• The electronegativity fluctuates.

• The electronegativity increases.

• The electronegativity remains constant.

What happens to the electronegativity as you move down a group?

• The electronegativity increases.

• The electronegativity decreases.

• The electronegativity fluctuates.

• The electronegativity remains constant.

Which property refers to the energy required to remove an electron from an atom?

• atomic radius

• electron affinity

• ionization energy

• electronegativity

What happens to the ionization energy as you move from left to right across a period?

• The ionization energy generally decreases.

• The ionization energy generally increases.

• The ionization energy remains constant.

• The ionization energy fluctuates randomly.

What happens to the ionization energy as you move down a group?

• The ionization energy fluctuates.

• The ionization energy remains constant.

• The ionization energy decreases.

• The ionization energy increases.

Which property refers to the ability of an atom to gain electrons?

• atomic radius

• electron affinity

• electronegativity

• ionization energy