LC Chemistry Periodic Table Trends

What is the general trend for atomic radius as you move from left to right across a period in the periodic table?

• Decreases

• Remains constant

• Increases

• Fluctuates

Explain the trend in ionization energy as you move down a group in the periodic table.

• The ionization energy increases

• The ionization energy becomes negative

• The ionization energy decreases

• The ionization energy remains constant

How does the reactivity of alkali metals change as you move down the group in the periodic table?

• Reactivity becomes unpredictable

• Reactivity remains the same

• Reactivity increases

• Reactivity decreases

What is the trend for atomic radius as you move down a group in the periodic table?

• Increases

• Decreases

• Fluctuates

• Remains constant

Why does ionization energy generally increase as you move from left to right across a period in the periodic table?

• Effective nuclear charge increases

• Electron affinity decreases

• Atomic radius decreases

• Number of valence electrons decreases

Describe the trend in reactivity of halogens as you move down the group in the periodic table.

• Reactivity decreases

• Reactivity fluctuates

• Reactivity increases

• Reactivity remains constant

What factors contribute to the trend in atomic radius across a period in the periodic table?

• Increasing atomic mass and decreasing number of protons

• Increasing electron affinity and decreasing ionization energy

• Increasing number of electrons and decreasing electronegativity

• Increasing nuclear charge and decreasing shielding effect

Explain the trend in ionization energy as you move from top to bottom within a group in the periodic table.

• The ionization energy increases

• The ionization energy remains constant

• The ionization energy becomes negative

• The ionization energy decreases

How does the reactivity of noble gases compare to other elements in the periodic table?

• Noble gases are more reactive

• Noble gases are the most reactive elements

• Noble gases are less reactive

• Noble gases have no reactivity

What is the trend for ionization energy as you move from left to right across a period in the periodic table?

• increases

• fluctuates

• decreases

• stays the same