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crystal-properties-worksheet - Characteristics of...

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Characteristics of Crystals (reference: class notes and discussion, pg. 374-375) Crystal type Particles in crystal Attractions be- tween particles Melting/ boiling point Electrical conductivity Texture and solubility Condition for formation Example Metallic Network solids Ionic Molecular (polar) Molecular (non-polar) Place a number (corresponding to the descriptions below) in each of the boxes in the chart Particles in crystal 1. Atoms or non-polar molecules 2. Positive nuclei surrounded by a sea of negative electrons 3. Atoms 4. Polar molecules 5. Positive and negative ions Attraction between particles 6. Electrostatic attraction between instantaneous or induced dipoles (weak London forces) 7. Metallic bond (strong) 8. Electrostatic attraction between ions 9. Electrostatic attraction between dipoles (moderately strong dipole-dipole, or slightly stronger H-bonding) 10. Covalent bonds (strong) Melting/boiling point (relative) 11. Highest 12. High 13. Intermediate to high 14. Low to intermediate 15. Lowest Electrical conductivity 16. Good conductor
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