posted by Anonymous .
out of: Si, P, S, and Cl, which has the smallest radius?
I think it is Phosphorus.
I actually think it is Cl
Is it? Silicon is 210pm, Phosphorus is 58pm, Sulfur is 103pm, and Chlorine is 100pm. So I figured Phosphorus...
As you move from left to right, the atomic radius decreases. Therefore, Si would have the greatest radius.