The pattern is a general trend that is very consistant
In the group 2 (IUPAC name) of the periodic table the atomic radius increase from beryllium to radium.
In general, they are opposing. Electronegativity increases going left to right in a period and up in a group. Atomic radius decreases going left to right in a period and up in a group.
Decreases. Look at the images under atomic radius, on wikipedia.
A relation doesn't exist.
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
it decreases
Atomic radius of Iodine is very large compared to potassium.
the positive ionic radius is smaller than the neutral atomic radius