Metallic bonds
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9 Terms
Properties of Metals
Malleable, shiny , ductile and conduct electricity
What is a metal made up of
Lattice of cations surrounded by a ‘sea’ of delocalized electrons
What is metallic bonding
Electrostatic attraction between cation and delocalized electron of a whole lump of metal
Why is metal malleable and ductile
Layers of cations in metal can slide without breaking
What is ductile
can be stretched into wires
Difference between liquid metal and solid metal
Liquid metal is not ductile and malleable but still carry charge
What happens to metallic bond across period
Increases as more protons so cations have a higher charge and number of delocalized electrons per cations increases so MP and BP increases
What happens to metallic bond down a group
Melting point decreases down a group size of cation increases between cation and delocalized electron increases, weaker attraction , weaker metallic bond
What is a
Note 
Flashcards (39)