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Transcript of Chemical Bonding
that join atoms together Metallic bonds can be malleable, ductile, conducters
of heat and electricity and are strong. They are
also opaque and have high melting and boiling points. A metallic bond is made up of metal atoms
that have 'given up' their outer most electrons This happens because both Atoms need to fill their outer shells. The positive ions gained from te metal are surrounded by a sea of valence electrons.
The electrons themselves are attracted to the positive ions. There are two types of Covalent Bonding. A metallic bond is a bond between positive ions
and electrons that have the abilty to move around. Polar and Non- Polar Covalent Bonding. Polar Covalent Bonding is when two different atoms share an unequall amount of electrons between each other. Interactions between delocalised electrons and metal nuclei. They then form a molecule. There are two types of Covalent Bonding. Polar and Non-Polar Bonding. Non-Polar Bonding has an equal sharing of electrons. It is when two identical non-metals share electrons equally between them. Polar Bonding has an unequal sharing of electrons. It happens when two different non-metals unequally share electrons. The number electrons shared depends on the number of electrons needed to complete the shells. Ionic Bonding is formed through two oppositely charged ions. An "Ion" is a positively charged metal that has lost electrons, or and a negatively charged non-metal that has gained electrons. The electrostatic attraction between the negatively charged non-metal and the positively charged metal bring the two together creating and Ionic Compound. That is how Ionic Bonding is formed. In a solid state, ionic compounds form Lattice Structures. Science Alive-level 6. www.ausetute.com.au/covalent.html www.chemguide.co.uk/atoms/bonding/ionic.html www.visionlearning.com http://www.elmhurst.edu/~chm/vchembook/144Acovalent.html A Lattice structure is the allignment of the electrons. They make a certain pattern and create the Lattice structure. www.chemguide.co.uk/atoms/bonding/metallic.html Pictures from Jarrad Conron