Cations have a ______________ charge and are ______________ than the atoms from which they formed.

Which of the following has the smallest radius? a. P b. Cl^– c. Al d. S^2– e. Ga

Which of the following ranks these isoelectronic species in order of increasing atomic radii?

The measure of the size of an ion is called __________.

Arrange the following isoelectronic series in order of decreasing radius: F^–, O^2– , Mg²⁺, Na⁺.

Arrange each of the following sets of atoms and ions in order of increasing size. Se2−,Te2−, Se