215 pico meters. This is from my Inorganic Chemistry book.
Bismuth has an atomic radius of 156 picometers.
If you think to the atomic radius the empirical atomic radius of polonium is 168 pm.
The calculated atomic radius is 184 picometers.
An atom of Indium has an atomic radius of about 155pm (picometers).
If you think to atomic radius: approx. 170 pm.
If the atoms are the same, it is the atomic radius.
Noble gases have the smallest 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.