1. Organization And Use Of The Periodic Table
Michael Bailey & Marlena Artis

2. Atomic Number Symbol (Uranium) Atomic Mass
The atomic number is the number of protons an atom has
Symbol
(Uranium)
The element’s symbol is simply the abbreviation for the name of the element. Sometimes the symbol is the abbreviation for the element’s Latin name.
The atomic mass is the atom’s mass often measured in AMUs (Atomic mass units) which weighs approximately 1/12 the mass of a carbon-12 atom
Atomic Mass

3. Chemical Families

4. Alkali Metals
Alkali Metals are the elements in the leftmost vertical column (group/family) on the periodic table excluding Hydrogen
These elements are highly reactive with other elements and increase in reactivity the farther you move down the column
All Alkali Metals have only one valence electron in their outer shell

5. Alkaline Earth Metals
These are the reactive elements found in group two of the periodic table
These elements have two valence electrons in their outer shell
All of these elements are metals
Alkaline earth metals are typically not found in nature due to their high reactivity

6. Transition Metals
These are the elements/metals found in groups 3-12 of the periodic table
Most are malleable, ductile, and conduct electricity
These elements contain assorted amounts of valence electrons that are NOT determined by what group they are in

7. Inner Transition Metals (Lanthanides and Actinides)
Inner Transition Metals are the two periods of elements which visually are located at the bottom of the periodic table, but technically are located after the elements Lanthanum and Actinium
The Lanthanides are the top period while the Actinides are the bottom period
Almost all of the Actinides are radioactive and are man made in a laboratory
Some of the Actinides with higher atomic numbers are so large that they can only exist for sometimes milliseconds before breaking down into more stable elements

8. Halogens
Halogens are the extremely reactive non-metals located in group 7 of the periodic table
These elements all have 7 valence electrons in their outer shell
The Halogens react violently with other elements
Most combine with the Alkali Metals to form useful and sometimes edible ionic compounds

9. Noble Gases
The Noble Gases are the stable elements located in group 8 of the periodic table
These gases all have a full outer electron shell (8 valence electrons)
These elements never naturally react with other elements because they neither want to gain or lose electrons
Most of these gases can have an electric current passed through them to create very bright and colorful lights (Neon, Argon, Xenon)

10. Metals, Non-Metals, & Metalloids

11. Metals All Elements to the left of group 13 are metals
The Lanthanides and Actinides are also metals
Most metals are malleable (able to be hammered into sheets), ductile (the ability to be drawn into a wire), and conduct electricity
They are also lustrous and can conduct heat well
Metals tend to lose electrons and therefore are the cations in compounds

12. Non-Metals
Non-metals are located diagonally down and to the right starting with carbon
They include the halogens and noble gases
Non-Metals generally gain electrons and therefore are the anions in compounds
Non-Metals are poor conductors of heat and electricity, are very brittle, and are not lustrous

13. Metalloids
Metalloids are located along the staircase line between the metals and non-metals
They possess characteristics of both metals and non-metals
Most are malleable and ductile and they can conduct heat and electricity, but not to the extent that metals can