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4 types of crystalline solids

4 types of crystalline solids. Molecular covalent Network covalent Ionic Metallic. Let’s look at the table!. Find an example of each on your own!!. Ionic: Structure. Back to table.

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4 types of crystalline solids

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  1. 4 types of crystalline solids • Molecular covalent • Network covalent • Ionic • Metallic Let’s look at the table!

  2. Find an example of each on your own!!

  3. Ionic: Structure Back to table • Crystal lattice structure: alternating cations and anions held together by electrostatic attractions (+ attracted to -, just like a magnet!)

  4. Ionic compounds: Hardness Ionic compounds are hard!! Make sure in your table, you also know what it means that an ionic compound is brittle and why! http://auden.webster.edu/~scottsus/characteristics.htm Back to table

  5. Ionic: MP/BP Back to table http://www.kentchemistry.com/links/bonding/ionicProps.htm

  6. Ionic: Conductivity Back to table Read the caption for the three pictures in the link below. http://www.chem.ufl.edu/~itl/2051_s97/week_1/ionic.html

  7. Metallic structure Back to table http://sixthsense.osfc.ac.uk/chemistry/bonding/metallic.asp

  8. Metallic: Hardness Back to table Scroll down to “Strength and workability” and write information about hardness, malleability, and ductility http://www.chemguide.co.uk/atoms/structures/metals.html#top

  9. Metallic: Conductivity Back to table Scroll to slide 8!! http://www.slideshare.net/chemistryhelpline/properties-of-compounds-ionic-covalent-and-metallic

  10. Metallic: MP/BP Back to table Scroll to slide 8!! http://www.slideshare.net/chemistryhelpline/properties-of-compounds-ionic-covalent-and-metallic

  11. Covalent Network: Structure http://www.avogadro.co.uk/structure/chemstruc/network/g-molecular.htm Click on the link, and press “covalently bond C atoms” and “keep bonding” to see the structure. Back to table

  12. Covalent network: MP/BP http://www.avogadro.co.uk/structure/chemstruc/network/g-molecular.htm Read the first paragraph! Back to table

  13. Network covalent: Conductivity Scroll to slide 4!! http://www.mi.mun.ca/users/pfisher/Chemistry1011_92.pdf Back to table

  14. Network covalent: hardness Since there is a network of strong covalent bonding, network covalent solids are very hard. Back to table

  15. Molecular Covalent: Structure Molecular covalent are all nonmetal atoms. You drew examples of these when we did lewis structures. The molecules are held together by intermolecular forces. Here is an example: Back to table

  16. Molecular covalent: Hardness Since molecular covalent molecules are held together by IMFs which are MUCH weaker than bonds, molecular covalents are considered soft molecules. Back to table

  17. Molecular covalent: conductivity Scroll a ways down to “electrical conductivity” http://www.chemguide.co.uk/atoms/structures/molecular.html Back to table

  18. Molecular covalent: MP/BP 2nd paragraph!! http://www.chemguide.co.uk/atoms/structures/molecular.html Back to table

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