'Multiple covalent bonds' diaporamas de présentation

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Chapter 10 Chemical Bonding

Chapter 10 Chemical Bonding. Tro, 2 nd ed. Metals are found to the left of the metalloids. Nonmetals are found to the right of the metalloids. LEWIS STRUCTURES OF ATOMS. Metals form cations and nonmetals form anions to attain a stable valence electron structure.

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General Chemistry

General Chemistry. M. R. Naimi-Jamal Faculty of Chemistry Iran University of Science & Technology. ??? ???? :. ????? ?????????. Chemical Bonding. Problems and questions: How is a molecule or polyatomic ion held together? Why are atoms distributed at strange angles?

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Ch. 6.2 Objectives

Section 2 Covalent Bonding and Molecular Compounds. Chapter 6. Ch. 6.2 Objectives. Define molecule and molecular formula. Explain the relationships among potential energy, distance between approaching atoms, bond length, and bond energy. State the octet rule.

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Covalent Compounds

Covalent Compounds. Covalent Compounds. Usually soft and squishy Not soluble in water Does not conduct electricity Low melting points Low boiling points. Two Types of Bonds. Ionic : Electrons are lost or gained Covalent : Electrons are shared Non-polar covalent: equally shared

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The Chemistry of Life

The Chemistry of Life. Why are we studying chemistry?. Chemistry is the foundation of Biology. Everything is made of matter Matter is made of atoms. Hydrogen 1 proton 1 electron. Oxygen 8 protons 8 neutrons 8 electrons. Proton. +. Neutron. 0. Electron. –. The World of Elements.

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The Chemistry of Life

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The Chemistry of Life

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6-2

6-2. Covalent Bonding. What is a MOLECULE ?. Why would nature favor forming a covalent bond?. Beaker Breaker. Based on the their locations on the periodic table are the following covalent bonds or ionic bonds MgCl 2 KCl NO 3 CO 2.

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Ch 9 COVALENT BONDING

Ch 9 COVALENT BONDING. Covalent bonds. Chemical bond that results from the sharing of TWO electrons. Covalent bonds. Covalent bonds. Covalent bonds. Covalent Bonds. Balancing Act of Attractive and Repulsive Forces. Electrostatic Forces. Diatomics. Hydrogen Nitrogen Oxygen

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Chapter 9: Covalent Bonding

Chapter 9: Covalent Bonding. Review. Noble gases are the most stable Have full outer energy level Do not react with other elements to form bond Metals and Nonmetals react form binary ionic compounds electrons are transferred attain a noble gas configuration.

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January 4, 2011 Objectives Define molecule

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Part 3 : Lewis Dot Structures and Multiple Bonds

COVALENT BONDING AND VSEPR . Part 3 : Lewis Dot Structures and Multiple Bonds. Objectives. To learn how to depict covalent bonds with Lewis Dot Structures To understand the difference between single, double, and triple covalent bonds. Stability in Bonding .

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Covalent Bonding

Covalent Bonding. Covalent Bonds. Bond Length and Energy. Bond Energy and Enthalpy. The Octet Rule. The Octet Rule and Covalent Compounds. The Octet Rule: The Diatomic Fluorine Molecule. The Octet Rule: The Diatomic Oxygen Molecule.

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Covalent Bonding Lewis Structures

Covalent Bonding Lewis Structures. Bonding with Nonmetals. When no metal is present to donate electrons, nonmetals can share electrons to fill their valence shells. F. F. Bonding with Nonmetals. Each atom donates an un-paired electron to be shared in the covalent bond. F. F.

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What Do You Think?

What Do You Think?. Provide the Lewis structure for CH 4 . Give the orbital notation for a carbon atom . Describe the inconsistency that exists between the number of bonds that carbon forms and its electron arrangement. Hybridization.

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Resonance

Resonance. Example : O 3 Experimental evidence shows each of the oxygen-oxygen bonds are identical . There are certain cases in which a single Lewis structure cannot correctly describe a molecule. These molecules exhibit a phenomena known as resonance .

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