Chemistry Bonding

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Ionic Bonding- High melting point (MP)
Strong electrostatic force between negative and positive ions Fixed/ rigid, lattice crystalline structure, requires high temperature to break bonds
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Ionic Bonding- Brittle and Hard
Repulsive force is created when the ions crystalline structure is disrupted, resulting in ions separating and destroying the ionic compound
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Ionic Bonding-Conducts electricity – if molten or dissolved in water (aqueous solution) NOT in solid form
Charged particles are free to move when ionic compounds are in molten or aqueous states. When solid, ions are in fixed positions so there are no charged particles free to allow electric current to pass through the solid
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Ionic Bonding- Mostly soluble in water
Ions are attracted to the water molecule and move out of alignment They then dissolve
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Metallic Bonding- Metallic lustre
Shiny
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Metallic Bonding- Good conductor of heat
Due to delocalized electrons heat is applied and the collision caused by the vibrations can allow the transfer of energy through the metal
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Metallic Bonding- Good conductor of electricity
Metals form cations and a sea of delocalised electrons. The movement of electricity through the metal is enabled by the free electrons which move readily throughout the metal
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Metallic Bonding- Malleable
Metals are able to be bent, due to no fixed structure, electrons and cations can move freely
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Metallic Bonding- Ductile
Stretched into wire
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Metallic Bonding - Hardness
Varied bond strengths in different metals give variable levels of hardness
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Metallic Bonding- Melting point
Variable strengths of bonds give variable melting point
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Metallic Bonding- Tensile Strength
Variable strength of bonds gives variable tensile strength when ductile
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Metallic Bonding- Density
Volume, mass and how close the cations are within 1 cm squared Measured in gcm-1
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Covalent Molecular Properties
Low melting and boiling point, non conductor of electricity in liquid or solid states, soft, mostly soluble in water
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Covalent Network Properties
High meeting and boiling point, non-conductor or electricity, very hard and brittle, insoluble in water,
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Other cards in this set

Card 2

Front

Repulsive force is created when the ions crystalline structure is disrupted, resulting in ions separating and destroying the ionic compound

Back

Ionic Bonding- Brittle and Hard

Card 3

Front

Charged particles are free to move when ionic compounds are in molten or aqueous states. When solid, ions are in fixed positions so there are no charged particles free to allow electric current to pass through the solid

Back

Preview of the back of card 3

Card 4

Front

Ions are attracted to the water molecule and move out of alignment They then dissolve

Back

Preview of the back of card 4

Card 5

Front

Shiny

Back

Preview of the back of card 5
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