If the atoms are the same, it is the atomic radius.
The atomic radius of caesium is practically identical to the atomic radius of francium.
Gallium has an atomic radius of 135 picometers.
Atomic radius of Iodine is very large compared to potassium.
the positive ionic radius is smaller than the neutral atomic radius
The atomic radius is the same thing as the Atomic Mass.
Size of a nutral atom
If the atoms are the same, it is the atomic radius.
The atomic radius of caesium is practically identical to the atomic radius of francium.
Gallium has an atomic radius of 135 picometers.
The negative ionic radius is larger than the neutral atomic radius
the atomic radius of antimony is 159
Atomic radius of Iodine is very large compared to potassium.
the positive ionic radius is smaller than the neutral atomic radius
Gold has an atomic radius of 144 picometers.
Silver's atomic radius is 144 picometers.
The atomic radius of protactinium is 180 pm.