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Bonding
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Learning Goals I am learning to form and name ionic compounds.
I am learning to form and name molecular compounds.
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Bonding Goal: To achieve a full octet (full valence shell)
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Ionic bonding
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Ionic Bonds Happens between a metal and a non-metal.
Involves the transferring of electrons
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Metals Metal loses electrons to become a cation (+ve charge)
# of protons > # of electrons
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Non-metals Non-metal gains electrons to become an anion (-ve charge)
# of protons < # of electrons
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Attraction Since opposite charges attract, metal and non-metal bond together. We can use Lewis diagrams to demonstrate this …
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Examples 1: Draw the Lewis Dot Diagram and name the compound formed between Lithium and Fluorine. 2: Draw the Lewis Dot Diagram and name the compound formed by Calcium and Chlorine.
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Naming Name the metal first
Change the ending of the non-metal to “ide”
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Molecular bonding
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Molecular Bonding Happens between two non-metals.
Involves the sharing of electrons. The sharing of electrons is called a covalent bond.
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Draw the Lewis Dot diagram and name the molecule formed by 1 Nitrogen and 3 Hydrogen.
Draw the Lewis Dot diagram and name the molecule formed by 1 Carbon and 4 Hydrogen.
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Naming Covalent Compounds
You write the name of the first element and the second element second element s ending is changed to ’s ending is changed to “-ide” We use prefixes to state the number of each element present (never put “mono” on the first element) One = mono- Two = di- Three = tri- Four = tetra- Five = penta
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Example Provide names for the following compounds: N2O4 H2O CO2
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Example Provide formulas for the following names: nitrogen trihydride
phosphorus pentaoxide dicarbon tetraoxide
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Learning Goals I am learning to form and name ionic compounds.
I am learning to form and name molecular compounds.
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