Chemical Bonds Review

Chemical Bonds - Na-1 Cl 1 Solid Aqueous Andrew Rosen Metalmetals Non Geometric pattern In water Chemical Bonds L iquid Shared pair of electrons

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Liquid: Good conductor Aqueous: In water Free moving ions Good conductor Solid: Geometric pattern No free moving ions Poor conductor Cl -1 Non metals High I.E. High electronegativity Gains electrons Na +1 Metal Low I.E. Low electronegativity Easily lose electrons Shared pair of electrons Andrew Rosen Chemical Bonds Bonds: Results from a simultaneous attraction of electrons for two nuclei. Chemical Energy: Potential energy stored in bonds When a bond is formed, energy is released resulting in a lower energy state than the two separate atoms. I. Ionic Bonds: Transfer of electrons from the valence of one atom to the valence of another (salt) Characteristics: Strong electrovalent force High Melting point NaCl * If the electronegativity is greater than 1.67, it’s an ionic bond II. Covalent Bonds (form molecules): Sharing of a pair(s) of electrons (butter) Characteristics: Soft Low melting point Poor conductor A. Equal sharing of electrons
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1. Diatomic molecules H 2 Louis Dot Diagram: Structural Formula:
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This note was uploaded on 02/17/2011 for the course CHEM 101 taught by Professor Me during the Spring '11 term at Bellarmine.

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Chemical Bonds - Na-1 Cl 1 Solid Aqueous Andrew Rosen Metalmetals Non Geometric pattern In water Chemical Bonds L iquid Shared pair of electrons

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