Question

Which one of the following atoms has the smallest radius?

2 points
A) I
B) Co
C) Ba
D) Cl
E) Ca
Pls help

Answer 1

Helium is the smallest

Answer 2

Answer: Idoine/I

Cobalt/Co has a radius of 200 pm

Barium/Ba has a radius of 268 pm

Calcium/Ca has a radius of 231 pm

Chlorine/Cl has a radius of 175 pm

Iodine/I has a radius of 140 pm

Therefore the answer is Iodine, I hope this helps!