Elements<br />Section 1-3<br />
Objectives<br />1. Use a periodic table to name elements, given their symbols<br />2. Use a periodic table to write the sy...
Elements<br />Pure substances that cannot be decomposed by chemical means<br />Serve as building block of matter<br />Each...
Periodic table<br />
Elements on Periodic table<br />Atomic number<br />6<br />C   12.011 Carbon<br />Chemical Symbol<br />Atomic Mass<br />Ele...
Chemical Symbols and Names<br />First Letter – C, H, F<br />First and second letter – Al, Ne, Li<br />First and other than...
Types of elements<br />Metals<br />Properties<br />Luster<br />Malleable<br />Ductile<br />Good conductor of heat and elec...
Copper – representative metal<br />Reddish color<br />Metallic luster<br />Found in chalcopyrite and malachite<br />Melts ...
Nonmetals<br />Many are gases at room temperature             (F, O, N, Cl)<br />Brittle<br />Nonconductors of heat and el...
Phosphorus – a nonmetal<br />One of 5 solid nonmetals<br />Two forms – red phosphorus (melts at 597 celsius)   <br />White...
Metalloids<br />Stair-step line separates metals from nonmetals on periodic table<br />Metalloid is an element that has so...
Noble gases<br />Elements in group 18 of periodic table<br />UNREACTIVE<br />Not identified until 1962<br />All gases at r...
Chapter 1.3 Elements
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Chapter 1.3 Elements

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Chapter 1.3 Elements

  1. 1. Elements<br />Section 1-3<br />
  2. 2. Objectives<br />1. Use a periodic table to name elements, given their symbols<br />2. Use a periodic table to write the symbols of elements, given their names<br />3. Describe the arrangement of the periodic table<br />4. List the characteristics that distinguish metals, nonmetals, and metalloids<br />
  3. 3. Elements<br />Pure substances that cannot be decomposed by chemical means<br />Serve as building block of matter<br />Each element has characteristic properties<br />Organized on periodic table in groups according to their properties<br />
  4. 4. Periodic table<br />
  5. 5. Elements on Periodic table<br />Atomic number<br />6<br />C 12.011 Carbon<br />Chemical Symbol<br />Atomic Mass<br />Element Name<br />
  6. 6. Chemical Symbols and Names<br />First Letter – C, H, F<br />First and second letter – Al, Ne, Li<br />First and other than second letter – Mg, Zn, Sr<br />Non-English names – Na, Sb, Au, Fe<br /><ul><li>These elements have been around for a long time – Most come from Latin names</li></li></ul><li>Periodic Table<br />Groups ( families) – vertical columns usually here because of similar properties<br />Periods – horizontal rows Put in order of atomic number<br />
  7. 7. Types of elements<br />Metals<br />Properties<br />Luster<br />Malleable<br />Ductile<br />Good conductor of heat and electricity<br />
  8. 8. Copper – representative metal<br />Reddish color<br />Metallic luster<br />Found in chalcopyrite and malachite<br />Melts at 1083 celcius<br />Boils at 2567 celcius<br />Malleable and ductile<br />
  9. 9. Nonmetals<br />Many are gases at room temperature (F, O, N, Cl)<br />Brittle<br />Nonconductors of heat and electricity<br />Dull ( no luster)<br />
  10. 10. Phosphorus – a nonmetal<br />One of 5 solid nonmetals<br />Two forms – red phosphorus (melts at 597 celsius) <br />White phosphorus (melts at 44 celsius) Stored underwater, it ignites in air<br />Too reactive to exist in nature in pure form<br />All living things contain phosphorus<br />
  11. 11. Metalloids<br />Stair-step line separates metals from nonmetals on periodic table<br />Metalloid is an element that has some properties of metals and some of nonmetals<br />All are solids at room temp.<br />Less malleable than metals but not as brittle as nonmetals<br />Tend to be semiconductors<br />
  12. 12. Noble gases<br />Elements in group 18 of periodic table<br />UNREACTIVE<br />Not identified until 1962<br />All gases at room temp.<br />Neon, Helium, Argon, krypton, Xenon<br />

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