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BONDING IN MOLECULES
 

BONDING IN MOLECULES

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    BONDING IN MOLECULES BONDING IN MOLECULES Presentation Transcript

    • Chemistry PART 1
      • UNDERSTANDING
      • THE CONCEPT
      • OF
      • COVALENT BONDING
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    • QUICK QUIZZZZZ….
      • Only covalent compounds are called molecules.
      • TRUE or FALSE?
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    • BONDING IN MOLECULES Task What is bonding? What are Valence Electrons? Define the term Covalent. What is Covalent Bonding? www.sciencetutors.zoomshare.com
    • What is Bonding
      • Bonding is the linking of atoms between a metal and non metal and or between two non-metals
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      • What is Covalent Bonding?
      • A covalent bond is a strong bond between two non-metal atoms .
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    • Objective
      • To explain that a covalent bond arises from a shared pair of electrons
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    • Concept Of Valence Electrons
      • The electrons in the outermost shell are the valence electrons
      • These are electrons on an atom that can be gained or lost in a chemical reaction.
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    •  
    • VALENCE ELECTRONS AND STABILITY
      • Many elements are stable when they contain eight electrons in their valence shell.
      www.sciencetutors.zoomshare.com Nitrogen Boron Carbon Chlorine Sodium Potassium Calcium Valence electron Electron Configuration Symbol Elements
    • Calculating Valence Electrons Complete the table below: What are the symbols and valence Electrons of the following elements? Calcium Carbon Oxygen Potassium Chlorine Aluminium Magnesium Sodium
    • OCTECTOF VALENCE ELECTRON
      • What is the symbol of Fluorine?
      • What is the atomic number of fluorine?
      • What is the electron configuration of fluorine?
      • Two fluorine atoms, for example, can form a stable F2 molecule in which each atom has an octet of valence electrons by sharing a pair of electrons.
    • OCTECTOF VALENCE ELECTRON
      • What is the symbol of Fluorine?
      • What is the atomic number of fluorine?
      • What is the electron configuration of fluorine?
      • ANSWERS
      • Fluorine symbol (F)
      • Atomic number of fluorine is 9
      • Electron configuration is 2, 7
    • QUICK QUIZZZZZZZ…
      • Explain how a pair of oxygen atoms can form an O2 molecule.
      • What is the total valence electron of each atom of oxygen in a covalent bond?
    • Answers To Quick Quizzzzz…
      • Each atom of oxygen in a covalent bond has a total of eight valence electrons by sharing two pairs of electrons.
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      • Covalent means sharing
      • Complete the table below using your Periodic Table. Write down examples of non-metals that can share electrons.
      Carbon Oxygen Hydrogen Chlorine Example of Non-Metal Example of Non-Metal
    • Facts About Covalent Bonding
      • When non-metals react with non-metals they share electrons and form a covalent bond.
      • Single Covalent Bond
      • One pair of shared electrons
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    • Facts About Covalent Bonding
      • When non-metals react with non-metals they share electrons and form a covalent bond.
      • 2. Double Covalent Bond
      • Two pairs of shared electrons
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    • Facts About Covalent Bonding
      • When non-metals react with non-metals they share electrons and form a covalent bond.
      • 3. Triple Covalent Bond
      • Three pairs of shared electrons
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      • What is Covalent Bonding?
      • A covalent bond is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms, and other covalent bonds
    • COVALENT BONDING
      • To introduce covalent bonding as the strong bonding between atoms in molecules
      • What is the Atomic Number Of Chlorine?
      • How many electrons are there in an atom of Chlorine?
      • What is the electron configuration of Chlorine?
      • How many more electrons does chlorine need to have a full outer shell?
    • COVALENT BONDING
      • To introduce covalent bonding as the strong bonding between atoms in molecules
      • What is the Atomic Number Of Hydrogen?
      • How many electrons are there in an atom of Hydrogen?
      • What is the electron configuration of Hydrogen?
      • How many more electrons does Hydrogen need to have a full outer shell?
    •  
    •