Periodic Trends

Question 1

Zeff

Answer 1

Effective Nucelar Charge:

The net positive charge that individual electrons feel from the nucleus

Question 2

Atomic Radius

Answer 2

The distance from nucleus to outermost stable electron orbital
Decreases as you go to the right
Increases as you go down

Question 3

Ionic Radius

Answer 3

The distance from center of nucleus to the valence electrons of an ion
Increases as you go to the right

Question 4

Metallic Character

Answer 4

How readily atoms loose electrons
Decreases as you go to the right
Increases as you go down

Question 5

Electron Affinity

Answer 5

The energy released when an electron is added to the valence shell creating an anion
Increases as you go to the right
Decreases as you go down

Question 6

Ionization Energy

Answer 6

The amount of energy required to remove an electron from an atom to form a cation
Increases as you go to the right
Decreases as you go down

Question 7

Electronegativity

Answer 7

The ability to attract a bonding pair of electrons
Increases as you go to the right
Decreases as you go down