Question

The smallest one of the following species (Cl-, K+, Br-, I-, Cs+) is:

a) Cl-
b) K+
c) Br-
d) I-

Answer 1

The smallest one of the species Cl-, K+, Br-, I-, Cs+ is Cl-.

Step-by-step explanation:

The smallest one of the species Cl-, K+, Br-, I-, Cs+ is Cl-

To determine the smallest ion, we need to consider the atomic radius and the ion's charge. When moving down a group in the periodic table, the atomic radius increases. Therefore, Cl- will have the smallest size among the options given.