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1.4 Solid Structure - Coggle Diagram
1.4 Solid Structure
Physical properties
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Ionic
When molten or in a solution, they are conductors
When solid, they aren't a conductor
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Ionic crystals
Caesium Chloride
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Melting point = 645'C ----------> the sodium ion has a low melting point as it has more shielding for the outermost electron
The caesium ions are surrounded by layers of electrons since a caesium ion is larger than a sodium ion
The melting and boiling points of caesium chloride are strong as it has strong electrostatic attraction between oppositely charged ions
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Sodium Chloride
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Sodium chloride is a co-ordinated ion because the attraction between the greater the charge between the negatively charged ions causing more energy to be released therefore making it more stable
The strong electrostatic forces between each oppositely charged ions causes NaCl to have a high melting and boiling point
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Melting point = 801'C ------> the sodium ion has a high melting point as it has less shielding for the outermost electron
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