Download Chapter 1, unit 3

Chapter 1, Unit 3
Monday, September 10, 2012
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List four (4) properties, physical or chemical, of
most metals.
Compare the way metals on the left side and
the right side of the periodic table react.
If you point to an element in the periodic table
at random, is it more likely to be a metal,
nonmetal, or metalloid? Explain.
How do very reactive metals behave?
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Metals are all around you
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Common metals-zinc, iron, copper, aluminum,
nickel and silver
Physical properties
 Metals are classified by their hardness, shininess,
malleability, and ductility
 Most metals are solid at room temperature
 High melting points
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Chemical Properties
 Metals show a wide range of chemical properties
 Some are very reactive; others are not
 Reactive metals combine with other elements quickly
giving off energy.
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An alloy is a mixture of two or more elements
that have properties of a metal.
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Alkali Metals-Group 1
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The most reactive metals of all
Never found uncombined in nature
 Only in compounds
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As an element, alkali metals are very soft and shiny.
2 most important
 Sodium and potassium
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Alkaline Earth Metals-Group 2
Not as reactive as alkali metals
 Never found uncombined in nature
 Fairly hard
 Gray-white in color
 2 most common
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 Magnesium and calcium
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Farther to the right-less reactive
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Transition Metals-Groups 3-12
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Familiar metals
 Iron, copper, zinc, nickel
Good conductors of electricity
 Some are hard and shiny
 Fairly stable
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 React slowly or not at all with air and water
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Transition metals in the body
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Iron
 Part of hemoglobin
 Hemoglobin carries oxygen in the bloodstream
 Gives blood bright red color
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Groups 13-16
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Metals, nonmetals, metalloids
Lanthanides and Actinides
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Lanthanides
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Soft, malleable, shiny metals
High conductivity
Found in nature
Difficult to separate
Actinides
 Thorium and uranium exist in significant amounts
 Unstable nuclei
 Made in the lab and are so reactive that they last only a
fraction of a second after they are made.
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List 4 properties, physical or chemical, of most
metals.
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Compare the ways metals on the left side and right
side of the periodic table react.
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Left side metals are very reactive and the farther right
you move the less reactive they become.
If you point to an element in the periodic table at
random, is it more likely to be a metal, nonmetal,
or metalloid? Explain?
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Malleability, hardness, shininess, ductility
A metal-they are the most abundant in the periodic table.
How do very reactive metals behave?
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Combine with other elements quickly giving off energy.