10. Periodic Properties of the Elements

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

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⁺.