
http://educationportal.com/academy/lesson/the-diagonalrelationship-boiling-point-and-metallicproperties.html

Metallic character increases downward and
increases from right to left across the period.

Electrical conductivity increases downward
and to the left


density generally increases as atomic number
increases.
http://www.ptable.com/


Atomic radius increases from right to left
within a period
Atomic radius increases downward within
families

Energy required to remove an electron.


Define ionization energy and how it trends
from the following video:
http://educationportal.com/academy/lesson/ionizationenergy-trends-among-groups-and-periodsof-the-periodic-table.html



Loss of electrons from an atom
Examples…
Li to Li +1, F to F
-1