Carbon. Allotropes. Carbon can bond with itself in at least three different ways giving us 3 different materials Diamond Graphite Buckyballs and nanotubes. Diamond. Carbons are bonded via sp 3 hybridization to 4 other carbon atoms forming a giant network covalent compound.By marli
Chapter 15 Gases, Liquids, and Solids. Dalton ’ s Law of Partial Pressures. Dalton ’ s Law of Partial Pressures. The partial pressure of a component in a gas mixture is the pressure that component would exert if it alone occupied the same volume at the same temperature.By bonnie
Single Crystal Slip. Adapted from Fig. 7.9, Callister 7e. Adapted from Fig. 7.8, Callister 7e. Calculation of Theoretical Shear Stress for a Perfect Lattice. G. Dieter, Mechanical Metallurgy, 3rd Edition , McGraw-Hill , 1986. Dislocation Concept.By angeni
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Covalent Bonds. Ionic vs Covalent Bonds. Covalent Bonds. The bond that forms from the sharing of valence electrons. naming. Name first element Name the second element and add –ide Use prefixes to indicate the number of atoms in the molecule
Covalent Bonds. Chapter 6.2 Notes. Sharing Electrons. Sharing Electrons A covalent bond is a chemical bond in which two atoms share a pair of valence electrons. When two atoms share one pair of electrons, the bond is called a single bond. . Sharing Electrons.
Covalent Bonds. Atoms can form molecules by sharing electrons in the covalent bond. This is done only among non-metal atoms. Molecules. Some elements in nature are found in the form of molecules Diatomic = 2 atoms BrINClHOF Compound composed Of molecules is called a Molecular compound.
Covalent Bonds. Terminology. Molecule – two or more atoms held together by covalent bonds Diatomic Molecule – molecule containing only 2 atoms Molecular Formula – shorthand notation for a covalently bonded substance showing the number and type of atoms example: C 6 H 12 O 6.
Covalent Bonds. Electronegativity Polar/non-polar covalent compounds Lewis dot structures Resonance. Covalent Bonding – What?.
Covalent Bonds. Bonding Atoms - Review. Why do atoms bond? Each atom wants a full outermost energy level How do they do this? By gaining, losing, or sharing valence electrons to achieve octet rule aka: “being happy or stable”
Covalent Bonds. Covalent Bonds. Are 2 or more atoms sharing electrons. Covalent naming. Use prefix to tell how many atoms Give name of first element Use prefix to tell how many atoms Give name of Last element (first syllable element then it ends in –ide). Mono- 1 Di – 2 Tri- 3 Tetra- 4
Covalent Bonds. Covalent Bonds. We already talked about how compounds form when electrons jump from atom to atom creating positive and negative ions. But is there another way??. Covalent Bonds. Let’s look at the compound….BrCl Hmmm….how can this be???. Covalent Bonds.
Covalent Bonds. Let’s Recall! Ionic compounds - A bond is formed through an electron transfer between a metal and a non-metal . Molecular compounds form when two non-metals share outer electrons. This bond is known as a covalent bond. Dogs Teach Chemistry. Di atomic Molecule.
Covalent bonds. Methane has four covalent bonds between carbon (C) and hydrogen (H). The figure above shows the methane molecule in four different views. Notice how these different views represent the atoms and their bonds differently. Dissolving ions in water. NaCl ions in water.