10. Periodic Properties of the Elements
Periodic Trend: Cumulative
a. Arrange the following elements in descending order of their first ionization energies.
F
K
S
Ca
Si
b. Arrange the following in ascending order of their ionic radii.
O2-
N3-
Mg2+
F-
K+
c. Arrange the following elements in descending order of their atomic radii.
Ca
K
F
Si
Ge
S