6_Lesson_6.pdf - Lesson 6 Bonding Ionic Bonding Lattice...

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Lesson 6 Bonding Ionic Bonding Lattice energy properties of salts Covalent Bonding Bond properties Bond length Bond strength Bond order Naming Compounds Mary J. Bojan Chem 110 1 IONIC electrons traded to form separate ions Mary J. Bojan Chem 110 COVALENT electrons shared between a few nuclei distinct molecules METALLIC electrons shared among all nuclei 2 Atoms (or ions) combine (bond) to form molecules (or compounds). There are three forms of bonding.
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Mary J. Bojan Chem 110 3 1. Valence electrons are involved in bonding 2. Octet rule: elements tend to gain, lose or share electrons so as to gain an inert gas configuration. (Duet for H and He) Ionic bonding occurs when ions combine to form compounds (salts). Mary J. Bojan Chem 110 4 Electrons are exchanged to form separate ions with complete octets. Ionic bond (interaction between the ions) is due to electrostatic attraction. Coulomb's Law is place to start.
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Lattice energy is the change in energy when an ionic solid is separated into isolated ions in the gas phase.
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