Periodic Table Families

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

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

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

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

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

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

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

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

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

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

Periodic Table Elements Song of the Elements http://www.elife-pharmacy.com/?aff=10046