bonding and physical properties

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10 Terms

1
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ionic state at room temp

solid due to strong electrostatic forces…high melting and boiling points as lots of energy is needed to overcome forces

2
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metal state at room temp

solid…high melting and boiling point as there are strong attractive forces between cations and the sea of delocalised electrons

3
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covalent state at room temp

simple molecular structures are liquid or gas…giant covalent structures are solid

4
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ionic solubility

soluble in water…water molecules are polar and attracted to ions on ionic compound surface

5
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metal solubility

don’t dissolve in water…force of attraction between cations and delocalised electrons are too great

6
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covalent compounds

some soluble and some insoluble

7
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hydrolysis

breakdown of a compound by water

8
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ionic electrical conductivity

only when molten as ions become mobile

9
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metals electrical conductivity

when solid and molten due to delocalised electrons

10
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covalent electrical conductivity

dont conduct due to no mobile electrons or ions