Structure & Bonding (IGCSE Edexcel Chemistry)
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29 Terms
Metallic Bonding
Strong electrostatic force of attraction between the sea of delocalised electrons and positive metal ions
Malleable
easy to shape or bend
Ions
positively and negatively charged atoms which are formed after electrons are lost / gained
Ammonium ion
NH₄⁺
Carbonate ion
CO₃²⁻
Sulphate ion
SO₄²⁻
Nitrate ion
NO₃⁻
Hydroxide ion
OH⁻
Ionic Bonding
Strong electrostatic force of attraction between oppositely-charged ions
Giant ionic lattice
Structure formed when ions attract each other in a 3D cube
Dot cross diagram for NaCl
Dot cross diagram for sodium oxide
Dot cross diagram for magnesium chloride
Dot cross diagram for magnesium oxide
Covalent bonding
Strong electrostatic force of attraction between the shared pair of electrons and the nuclei of atoms
Dot cross diagram for hydrogen chloride
Dot cross diagram for nitrogen molecule
Dot cross diagram for oxygen molecule
Dot cross diagram for methane
Dot cross diagram for chloromethane
Dot cross diagram for water
Dot cross diagram for ammonia
Dot cross diagram for ethane
Dot cross diagram for ethene
Dot cross diagram for carbon dioxide
Reason why covalent molecules have low boiling points
Not much energy is needed to break the weak intermolecular forces between molecules
Diamond structure
Graphite structure
Fullerene structure
Note 
Flashcards (33)