1 / 16

Revision Exercise on Structures & Properties

Revision Exercise on Structures & Properties. S3 Chemistry. What is the bonding structure of the compound/element formed by : Sodium Atoms Chlorine and Potassium Carbon and Oxygen Carbon (in form of diamond). Giant Metallic Structure Giant Ionic Structure Simple Molecular Structure

gayora
Download Presentation

Revision Exercise on Structures & Properties

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Revision Exercise on Structures & Properties S3 Chemistry

  2. What is the bonding structure of the compound/element formed by : • Sodium Atoms • Chlorine and Potassium • Carbon and Oxygen • Carbon (in form of diamond) Giant Metallic Structure Giant Ionic Structure Simple Molecular Structure Giant Covalent Structure (Metal ←→Metal) (Metal ←→Non-metal) (Non-metal ←→Non-metal) Van der Waal’s Attraction between molecules Bonding Structure (Non-metal ←→Non-metal)

  3. Bonding Structure Comparison

  4. Map the compound/element to their melting point & boiling point. Strong bond / Giant metallic structure Strong bond / Giant ionic structure Weak Van Der Waal’s Attraction Strong bond / Giant covalent structure Melting point / Boiling point

  5. Melting point / Boiling point Comparison

  6. What are the states of the following substances ? • Sodium • Potassium Chloride • Carbon Dioxide • Diamond (Solid) (Solid) (Gas) (Solid) State

  7. State Comparison

  8. Estimate the electrical conductivity of the following substance it has mobile electrons Solid / Liquid it has mobile ions Molten it is a gas Any it doesn’t have mobile eletrons/ions Any Electrical Conductivity

  9. Conductivity Comparison

  10. What are the solubility of the following substances ? • Sodium • Potassium Chloride • Carbon Dioxide • Diamond (Insoluble) (Soluble) (Insoluble) (Insoluble) Solubility

  11. Solubility Comparison

  12. What is the bonding structure of A ? Explain. • What is the bonding structure of B ? Explain. • What is the bonding structure of C ? Explain. • What is the bonding structure of D ? Explain. Giant Metallic Structure. Good Electrical Conductivity in Solid/Molten Giant Ionic Structure. Good Conductivity in Molten & Soluble Giant Covalent Structure. Poor Conductivity, Insoluble & high m.p./b.p. Simple Molecular Structure. Low m.p./b.p., poor conductivity & insoluble Integrated Question (Predict Structure)

  13. Predict the state of each elements. • Two compounds, one is formed by W and X and another is formed by X and Z. Which one will soluble in water ? Explain it in details. • By considering all the substances above including the compounds in (b), • Which one is the most hardness? Why? • Which one is not reactive? Why? • Which one is toxic? Why? • Which of them can conduct electricity? Why? Carbon Florine Neon Sodium 2,4 2,7 2,8 2,8,1 ZX. Ionic Compound W. Z is soft, X and Y are gases Y . Octet structure, noble gas X. Group 7 are toxic. Z, it is metal and ZX conduct in molten state Integrated Question (Predict Properties)

  14. MgO, SiO2, SO2 are oxides of Period 3 elements in the Periodic Table. • Discuss how the melting points of these oxides are related to their bonding and structure. SO2 Non-metal, Non-metal Covalent Bond Van der Waal’s Attraction Simple molecular structure MgO Metal ,Non-metal Ionic Bond Giant ionic structure SiO2 Non-metal, Non-metal Covalent Bond Giant covalent structure SiO2>MgO>SO2 Essay Type Question

  15. Summary

  16. The End

More Related