Name: _________________________________ Date: ____________ Period: _____
WS Summary of Periodic Trends
1.
Answer the following questions by circling the correct element.
Which is more electronegative?
Which has the smaller radius?
O Br
Ca Fe
Which has the lower ionization energy? Li K
Which has the higher electronegativity? Al S
Which is less electronegative?
Which has the larger radius?
C
Ba
N
P
Which has the higher ionization energy? Be Sr
Which has the lower ionization energy? Al Na
Which has the smaller radius? Au Ag
Which is less electronegative?
Which is less electronegative?
Br
Na
F
Rb
Which has the smallest radius?
Which has the lower electronegativity?
Which is less electronegative?
Which has the larger radius?
C
I
Which has the higher ionization energy? Li K
Si
Sn
I Cl
Ne Kr
Which is more reactive?
Which is more reactive?
Which is more reactive?
Na
Br
He
Cs
F
H

2.
Rewrite the following in order of decreasing atomic radius (largest to smallest):
Al, P, N, Na, F
3.
Rewrite the following in order of increasing ionization energy (lowest to highest):
Al, Sn, Pb, Ba, Cl
5.
4.
Rewrite the following in order of increasing electronegativity (lowest to highest):
P, F, N, Cl, Ne
Circle
T
T
T
T
T
T
T
T
T
T for a true statement,
F
F
F
F
F
F
F
F
F
F for a false statement.
Phosphorus is more electronegative than sulfur.
Sulfur has a smaller atomic radius than silicon.
Potassium has a higher ionization energy than cesium.
Chlorine is less electronegative than fluorine.
Aluminum is more reactive than sodium.
Lithium has a higher ionization energy than potassium.
Oxygen is more likely to gain an electron than carbon.
Calcium has a lower ionization energy than copper.
Magnesium will lose an electron easier than sulfur.