1. Periodic Table Families

2. Alkali Metals Brainiac Alkali Metals Video
1st column on the periodic table (Group 1) not including hydrogen.
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties:
Metals
Other Information:
Most Reactive, So reactive that in nature these are only found combined with other elements 1
VERY Reactive
Softness, Color of silver, Shiny, Low density

3. Alkaline-Earth Metals Alkaline Earth Metals Video
2nd column on the periodic table (Group 2)
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties:
Metals 2
VERY Reactive, but not as reactive as alkali metals
Color of silver, higher densities than alkali metals

4. Transition Metals Transition Metal Video
Columns 3-12 on the periodic table
Lanthanides: Shiny, reactive metals, some used to make steel
Actinides: radioactive (unstable) Elements after plutonium do not occur in nature (created in a lab)
Other Information:
Lanthanides and Actinies: 2 rows at bottom of periodic table to keep table from being too wide. Each row has similar properties
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties:
Metals
1 or 2
Less reactive than alkaline-earth metals
Shininess, good conductors of thermal energy & electric current; higher densities & melting points than elements in groups 1 and 2

5. Boron Family Boron Family Video
13th column on the periodic table (Group 13)
Other Information:
Aluminum is the most common & most abundant in earth’s crust.
USES: Aircraft parts, auto parts, siding, foil, cans
REACTIVE? Thin layer aluminum oxide form s on surface when reacts w/ oxygen. Prevents further reaction.
1 Metalloid
4 Metals
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties: 3
Reactive
Solids at room temperature

6. Carbon Family 14th column on the periodic table (Group 14) 1 Nonmetal
2 metalloids
2 metals
Other Information:
Nonmetal: carbon found uncombined in nature and forms wide variety of compounds.
Metalloids used to make computer chips
Tin useful not very reactive
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties: 4
Varies among the elements in the group
Solids at room temperature

7. Nitrogen Family Boron, Carbon and Nitrogen Family Video
15th column on the periodic table (Group 15)
2 Nonmetals
2 metalloids
1 metals
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties:
Other Information:
Nitrogen makes up 80% of air we breathe
Phosphorous is extremely reactive. Only found combined with other elements in nature 5
Varies among the elements in the group
Solids at room temperature
Except Nitrogen (N) which is a gas

8. Oxygen Family Oxygen Family Video
16th column on the periodic table (Group 16)
3 Nonmetals
1 metalloid
1 metal
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties:
Other Information:
Oxygen is 20% of air
Sulfur commonly found: Yellow solid in nature & Used to make sulfuric acid 6
Reactive
All but oxygen are solid at room temperature

9. Halogens Family Comparing Halogen Family Video
17th column on the periodic table (Group 17)
Other Information:
Very reactive
Combine readily with other atoms, especially metals to gain the missing electron
Halogen + Metal = salt
Chlorine and iodine used as disinfectants
Nonmetals
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties: 7
Very Reactive
Poor Conductors of electric current, violent reactions with alkali metals to form salts; never in uncombined form in nature
Similar chemical properties but physical properties among halogens can be very different

10. Noble Gases Family Noble Gases Family Video
18th column on the periodic table (Group 18)
Other Information:
Full set of electrons in the outer shell
Under normal conditions, unreactive
Useful because of unreactivity: Lightbulbs, Helium, Neon Signs
Nonmetals
Group Contains:
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties: 8
Except Helium which has 2
Unreactive
Colorless, odorless gases at room temperature

11. Hydrogen 1st Element in 1st column on the periodic table
Other Information:
Because of properties, it doesn’t fit with other groups
Located above group 1 because atoms of alkali metals also have only one electron in outer level
Physical properties like those of nonmetals
Found in Stars
Most abundant Element
Reactive nature makes it useful in rocket fuel
Electrons in the Outer Shell (Valence Electrons):
Reactivity:
Other Shared Properties: 1
Reactive
Colorless, odorless gases at room temperature; low density; explosive reactions with oxygen

12. Periodic Table Elements Song of the Elements