These questions deal with trends in atomic radii. look at table S if you have any questions.
Fe
Mg
Si
Zn
Decreases, only
Increases, only
Decreases, then increases
Increases, then decreases
Sodium has a larger atomic radius and is more metallic.
Sodium has a larger atomic radius and is less metallic.
Sodium has a smaller atomic radius and is more metallic.
Sodium has a smaller atomic radius and is less metallic.
16
18
29
35
Be, Mg, Ca
Ca, Mg, Be
Ba, Ra, Sr
Sr, Ra, Ba
Decreasing atomic mass
Decreasing atomic number
Increasing atomic mass
Increasing atomic number
103 pm
127 pm
166 pm
185 pm