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Molecular Compounds Tuesday, September 22, 2015

Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

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Page 1: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

Molecular Compounds

Tuesday, September 22, 2015

Page 2: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

Covalent Compounds

A pure substance formed from two or more NON-METALS

Tuesday, September 22, 2015

Page 3: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

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

Tuesday, September 22, 2015

Page 4: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

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

Tuesday, September 22, 2015

Page 5: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

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-

Tuesday, September 22, 2015

Page 6: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

Examples

Try the following:OF4 N2O Cl2O7

Tuesday, September 22, 2015

Page 7: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

ExamplesTry the following:OF4

Oxygen tetraflourideN2O

dinitrogen monoxideCl2O7

dichlorine heptoxide

Tuesday, September 22, 2015

Page 8: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

Examples

iodine trichloride diphosphorus pentoxide sulphur hexaiodide

Tuesday, September 22, 2015

Page 9: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

Examplesiodine trichloride

ICl3 diphosphorus pentoxide

P2O5

sulphur hexaiodideSI6

Tuesday, September 22, 2015

Page 10: Molecular Compounds€¦ · Molecular Compounds Tuesday, September 22, 2015. Covalent Compounds A pure substance formed from two or more NON-METALS Tuesday, September 22, 2015. Covalent

Diatomic Gases

HOFBrINCl

are called simply the name of element + “gas”

Tuesday, September 22, 2015