CHALLENGE CHEMISTRY -Higher -. Section 1 ELEMENTS & BONDING. LEARNING OBJECTIVES. 1.1. Metallic Elements On completing this lesson topic you should be able to:. use a simple diagram to describe bonding in a metal. explain the term delocalised electron.By garvey
Drill:. Carbon Monoxide Reading: (10 min) Read the Carbon Monoxide Reading and answer the following questions. Why is carbon monoxide so deadly? What about carbon dioxide? Does it have the same effect?. Objective:. Swbat:By sema
KS4 Chemistry. Covalent Bonding. Contents. Covalent bonding in elements. Covalent bonding in compounds. Covalent structures. Summary activities. Covalent Bonding. The covalent bond. H. H. H. H.By dbouchard
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Covalent Lewis Structures. Add up the valence electrons. Put the element with the fewest number of atoms in the middle and surround with the remaining elements. Draw a line from the central atom to the adjacent atoms Subtract two electrons for each line drawn.
Using Covalent Structures. Separating Immiscible Liquids. “Immiscible” means “two liquids that can’t be dissolved”, e.g. oil and water:. Separating these liquids is fairly easy – you simply allow them to settle and then “tap off” the heavier liquid at the bottom using a separating funnel.
IONIC AND COVALENT STRUCTURES. IONIC = metal + non metal COVALENT = non metal + non metal. Notebook Layout. Ionic Background. Octet Rule Atoms try to fulfill their Octet by either GAINING or LOSING electrons from their VALENCE shell Groups 1 – 4 LOSE Groups 5 – 7 GAIN.
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.
Covalent Bonding – Lewis Dot Structures. Chem -To-Go Lesson 17 Unit 4. Lewis Structures. Lewis Structures. Lewis structures : electron-dot diagrams show how electrons are arranged in molecules (AKA covalent compounds) Diagrams show ONLY valence electrons. Dashes represent “bonding pairs”
Covalent Bonding and Lewis Structures. Ionic Bonding. Generally occurs between metals and nonmetals Can also occur with polyatomic ions. Ionic Bonding. Involves the transfer of electrons, followed by electrostatic attraction. Covalent Bonding. Generally occurs between nonmetals .
Ionic, Covalent and Metallic Structures. IONIC. COVALENT. eg sodium chloride (salt). PURE substances have different STRUCTURES depending on the type of BONDING they have. METALLIC eg copper. SIMPLE eg carbon dioxide, water. GIANT eg diamond, graphite.
NAB Method. Lewis Structures Of Covalent Compounds. Information…. Octet rule alone does not allow us to create correct Lewis Structures Does not tell us where or how to place the bonded electrons NAB method helps. N = “NEEDED”.
Covalent Bonding and Lewis Structures. Day 1. Lewis Dot Structures and Bond Polarity. Ionic Bonding. Generally occurs between metals and nonmetals Can also occur with polyatomic ions. Ionic Bonding. Involves the transfer of electrons, followed by electrostatic attraction.