1. Alloys What is an alloy? Example of useful alloys bronze brass
Stainless steel
a mixture of metals
Useful alloys combine the best properties of two or more metals into a single substance
A mixture of copper (Cu) & tin (Sn)
A bronze can be used as a statue that can last hundreds of yrs.
A mixture of copper (Cu) & zinc (Zn)
A mixture of iron (Fe), carbon (C), chromium (Cr), & vanadium (V)
this alloy is used to make appliances, knives, forks because it doesn’t rust easily

2. Metals in the Periodic Table
Alkali Metals
sodium (Na) & potassium (K)
lithium (Li)
Metals in a group have similar properties & these family properties change gradually from left to right
Reactivity of metals tend to decrease from left to right
group 1 lithium to francium
Very reactive so always found as a compound in nature
Has one valence electron that can be easily transferred to other atoms during a chemical change
As pure elements these metals are very soft & shiny
Most important alkali metals
Both of these compounds are essential for life
Used in batteries & some medicine
vlal

3. Alkaline Earth Metals
Magnesium (Mg)
Calcium (Ca)
Group 2
Not as reactive as group 1 but more reactive than most metals
Never found uncombined in nature
Each element is fairly hard, gray-white, & good conductors of electricity
Each atom contains two valence electrons that can be easily transferred to other atoms during a chemical reaction
One of the most common alkaline earth metal
Combines w/ aluminum (Al) to make a strong but lightweight alloy to make ladders, airplane parts, & other products
Essential part of teeth & bones
Can find it in dairy products & green leafy vegetables

4. Elements in Groups 3 thru 12
Form a bridge betw. the very reactive metals on the left & less reactive metals on the right
Transition metals are very similar to one another that differences betw/ nearby columns are hard to detect
Most are hard, shiny, & good conductors of electricity
These metals are pretty stable, reacting slowly or don’t react at all
Some of the transition metals are used inside human body
Iron(Fe), copper(Cu), nickel (Ni), silver (Ag), & gold (Au).
Transition Metals
Some transition metals are

5. Iron (Fe)
Metals in Mixed Group
aluminum
tin
lead
Without it humans including animals could not live
It is an important part of hemoglobin that carries oxygen (O) in our bloodstream
Groups (these groups includes metals, nonmetals, & metalloids)
Aluminum(Al), gallium (Ga), Indium(In), thallium(Ti), tin (Sn), lead (Pb), bismuth (Bi), & polonium (Po)
Lightweight metal used in beverage cans & airplane bodies
Thin layer of tin is used to coat steal to protect if from corrosion in cans of food
A shiny, blue-white metal used for car batteries
It used to be used in paints & water pipes but not anymore because it is poisonous

6. At the bottom of the periodic table
Called rare earth elements
Fit in period 6 betw/ alkaline earth metals & transition metals
Soft, malleable, shiny metals with high conductivity
Used in industry to make various alloys
Diff. lanthanides are found together in nature
b/c they have very similar properties they are hard to separate
Lanthanides

7. Actinides
At the bottom of the periodic table below lanthanides
Only thorium & uranium in this group exist on Earth in any significant amounts
All the elements after uranium are synthetic (made in labs)