Periodic Trend Directions

Question 1

Shielding effect

Answer 1

Constant across periods
Increases down groups more orbital rings

Question 2

Effective nuclear charge

Answer 2

Increases across periods
Constant down groups

Question 3

Atomic radius

Answer 3

Increases right to left , increases top to bottom

Question 4

Ionic radius

Answer 4

Cations become smaller when losing Es
Anions become larger when gaining Es
Increases from to right to left and top to bottom

Question 5

Electronegativity

Answer 5

Incr-eases from left to right
decreases top to bottom
most electronegative element is fluorine

Question 6

Electron affinity

Answer 6

Increases from bottom to top
Increases from left to right
Doesn’t apply to noble gasses