Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A...
Transcript of Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A...
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Molecular Compounds
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Covalent Compounds
A pure substance formed from two or more NON-METALS
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Covalent CompoundsNon-metals share electrons to get a full outer shell
This creates a covalent bond = a bond that results from the sharing of outer electrons between non-metal atoms
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NamingCan’t use charges to figure out how many of each atom.Elements in the name are given prefixes corresponding to the subscripts (number of atoms) and the second element is given the suffix “-ide.”
e.g. CO2 is carbon dioxide
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The PrefixesNumber Prefix
1 mono*2 di3 tri4 tetra5 penta6 hexa7 hepta8 octa9 nona
10 deca
* The 1st element in the name never need a mono-
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Examples
Try the following:OF4 N2O Cl2O7
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ExamplesTry the following:OF4
Oxygen tetraflourideN2O
dinitrogen monoxideCl2O7
dichlorine heptoxide
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Examples
iodine trichloride diphosphorus pentoxide sulphur hexaiodide
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Examplesiodine trichloride
ICl3 diphosphorus pentoxide
P2O5
sulphur hexaiodideSI6
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Diatomic Gases
HOFBrINCl
are called simply the name of element + “gas”
Tuesday, September 22, 2015