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C3 (ions, covalent bonding, properties of simple covalent compounds) -…
C3
ions
Ionic bonding
Metal and a non- metal react, electrons in outer shell of metal to non- metal, metal is positively charged, non- metal is negatively charged
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Ionic lattice
regular structures ( giant ionic lattices), strong electrostatic forces of attraction in all directions between oppositely charged ions
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some atoms lose electrons to becomes stable, whereas some gain
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covalent bonding
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we use dot & cross diagrams to show this, as we do with ionic diagrams
some atoms need more than one electron, 2 shared forms a double bond, 3 shared forms a triple and etc...
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