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Elements, compounds and mixtures
 

Elements, compounds and mixtures

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    Elements, compounds and mixtures Elements, compounds and mixtures Presentation Transcript

    • Elements, Compounds and Mixtures Elements, Metals and Non-Metals
    • Objectives
      • Identify elements as the building block of matter
      • Classify elements as metals and non-metals
      • State the uses of metals and non-metals
    • What are they? Gold Tin Copper Carbon Carbon
    • Elements
      • Elements are the basic building block of matter.
      • There are about 117 known elements as of October 2006.
      • For online interactive information: www.chemicalelements.com
    • Metals and Non-Metals
      • There are two main groups of elements: metals and non-metals
      Poor Conductors Good conductors Solids/Liquids/Gases Solids* Low Density High Density Dull Shiny Non-Metals Metals
    • Periodic Table
      • The periodic table of elements is a table that shows all the known elements.
      • It list the elements in order of atomic masses and energy level of electrons.
      • It tells us metals from non-metals
    •  
    • Uses of Metals and Non-Metal
      • Chemical Elements are represented by Symbol
      Oxygen Atomic Number Mass Number O 16 8
    • Conclusion
      • Matter are made up of building blocks called elements .
      • Elements are divided into two groups: metals and non-metals .
      • Different properties metals and non-metal allow them to be used in different products.
      • Periodic Table tells us metals from non-metals as well as their reactivity.