Periodic Table

Question 1

Period Table Groups: Alkali metals

Group #
Reactivity
Reactivity Trend
Common Reactions

Answer 1

Question 2

Period Table Groups: Alkaline earth metals

Group #
Reactivity
Reactivity Trend
Common Reactions

Answer 2

Question 3

Period Table Groups: Transition metals

Group #
Reactivity
Reactivity Trend
Common Reactions

Answer 3

Question 4

Period Table Groups: Halogens

Group #
Reactivity
Reactivity Trend
Common Reactions

Answer 4

Question 5

Period Table Groups: Noble gases

Group #
Reactivity
Reactivity Trend
Common Reactions

Answer 5

Question 6

Periodic Table Trends

Zeff

Answer 6

Definition: The positive charge of protons on valence electrons

Trend across period: ↑ due to adding positive charge by adding a proton

Trend down a group: ↓ due to e- shielding effect

Question 7

Periodic Table Trends

Ionization energy

Answer 7

Definition: Energy needed to remove e-, aka how hard it is to lose e-

Trend across period: ↑ due to increase in valence e- getting further from empty valence

Trend down a group: ↓ due to increasing radii

Question 8

Periodic Table Trends

Electron affinity

Answer 8

Definition: Energy released when add e-, aka how easy it is to gain e-

Trend across period: ↑ due to increase in valence e- getting closer to full valence

Trend down a group: ↓ due to increasing radii

Question 9

Periodic Table Trends

Electronegativity

Answer 9

Definition: The force an atom exerts on an electron in a bond

Trend across a period: ↑, remember that F is the most electronegative element

Trend down a group: ↓, remember that F is the most electronegative element

Question 10

Periodic Table Trends

Atomic radii

Answer 10

Definition: The radius of the atom

Trend across a period: ↓ due to increasing nuclear charge but ↑ when you jump a shell

Trend down a group: ↑ due to adding shells